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DIY LED floodlight conversion module with PCB file. (full build)

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It's clear that these very low profile LED floodlights with the "driver" chips on the same panel as the LEDs are not reliable. There seems to be an issue with the driver chips failing and blowing the multi-chip LEDs. So I thought it would be fun to build a complete new retrofit LED module to re-use the case as a much lower power LED floodlight that is best suited to low level ambient or functional illumination.
The design deliberately uses an ordinary through-hole PCB and very common components, and is completely serviceable with all components being changeable or upgraded if desired. The power output is low at about 1.5W, but still provides a modest level of illumination and has a negligible running cost.
You can download the PCB file from www.bigclive.com/freebies.htm if you want to make one of these yourself. I've put both files up, but the 5mm version is the recommended one.
Things worthy of note. There is a facility to connect the earth/ground wire from the flex to the case via the PCB. This does require a metal spacer like a metal nut slightly larger than the screw that the case is designed to accept. The screw holes in this case were M3 so an M4 or M5 nut might be a good spacer, noting that it shouldn't be too big in case it encroaches on adjacent tracks. The other positions could use either the same spacer or better still, a plastic spacer of the same height. The PCB needs to be well clear of the back of the case to avoid the solder connections touching it. I'd suggest around 4 or 5mm clearance to allow for the possibility of slight PCB flexing due to thermal expansion/contraction. You could also use a layer of insulating material on the back of the case as extra protection. As in the original light, there isn't really any proper flex grip other than the cable gland and the actual wires being attached to the PCB.
You can use any colour of LED you like in the case including infra red. But note that the 15-20mA drive current will not provide high level illumination. Still very useful for path lighting, security lighting and illumination of foliage with appropriately coloured LEDs though.
If you enjoy these videos you can support the channel with a dollar for coffee, cookies and LEDs at / bigclive

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7 авг 2024

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Комментарии : 551

@JerryEricsson 8 лет назад

Watched this one again, as it is a very good one. You said somethig about getting a face showered with glass, this happened to me many moons ago. You see, my father was what you could call a conosour of Vodka, and drank up to a fifth a day of the clear gold. Back then things being as they were, all garbage was to be burned before the truck collected the ash, thus saving space in the dump and the truck. It was my chore, then a boy of 9 to carry out the garbage, and burn same each day, but garbage collection day. I used to really enjoy watching that fire, perhaps I was a fire bug in the making, however when one of dad's empty bottles exploded from the heat, throwing molten glass into my face and thankfully into my glasses, I quickly gave up the joy of watching fires, and began to dispare at taking out the garbage. The scars are still with me nearly 60 years latter but in the process of aging, have become quite hard to find.

@PunakiviAddikti 7 лет назад

In future versions of this floodlight, please remember to leave the earth wire to be the longest wire. The reason being, if the whole mains wire gets pulled out, the earth wire gets pulled out last. Just a small extra safety measure. Other than that, a great build, especially as you included a earth wire. Many people would leave that out because earthed cable costs more.

@oriole8789 8 лет назад

I think a lot of people on youtube try too hard to be impressive in some way or another, and it rarely ends up working out. The nicest things about your vids are the down to earth attitude, practical advice, a bit of fun and humor... it just never feels like a waste of time to watch. The pace is just right. Not too slow (ugh), not too fast where critical info is skipped (ughhh). Come to think of it, some people who shall remain nameless often say things like: "I'm not going to explain how this works because it's complicated/would take too long" - or something to that effect. Sorry but, it takes seconds to cover the basics of something in a general way, if you actually know what you're talking about. Better than leaving a big gap for the inexperienced viewers to have to fill in somehow. ANYHOW. I hope you realize how many people love you, whether they admit it or not haha. :D

@jjk-9 8 лет назад

wow 37 minutes and all i can remember is Rice, white wine like substance and chocolates with pink leds. I l also love how your not bothered about leaving the camera running while you quickly go away to grab something rather than editing that out. You have an amazing calming voice, just love listening to your videos/

@MsMarciax 6 лет назад

Your videos are contagiously addictive in a very nice calming way.

@kevindondrea144 3 года назад

He's the Bob Ross of Electronics. :) XD

@WM2869 8 лет назад

Lol I think I got too engrossed watching the video as I tried blowing away as he was drilling

@maxximumb 8 лет назад

+WM2869 I thought it was just me that did that.

@jamescollins6085 5 лет назад

Imagine it in VR

@stewartcaldwell5299 5 лет назад

You blew some in my ear !!!

@jlucasound 5 лет назад

I always do that. I also want to grab the screws he ejects so he doesn't lose them!

@iRuf12 4 года назад

lol no way!!

@goose300183 8 лет назад

It was great to see you take this all the way from an idea to an actual assembled unit. Good commentary as well, I really learned something from this. I think you would make a great college teacher!

@playingwithdata 8 лет назад

Great job. I loved seeing the end-to-end on the whole project and seeing the PCB being actually developed. I hadn't even thought it was realistic to do that on a hobbyist level before now.

@TrollFaceTheMan 8 лет назад

Speaking of relaxing, your videos very much fall into that category.

@hellishinc 6 лет назад

I watch them in bed. Relaxes the day away.

@stridermt2k 8 лет назад

Clive, I love how you are obviously knowledgeable about this stuff but it still find it cool to take stuff apart, explore and even improve things! Getting lost in the task is part of the fun! Best Regards!

@kevinlivingston9563 6 лет назад

Love your technique for holding the board and solder in one hand. You make it look so natural and easy. When I have to do it I’m about as graceful as a baby deer trying to walk for the first time. If you’ve never seen that it’s quite amusing but kind of pitiful at the same time.

@MrProvinspoul 4 года назад

I was 40 years back in time when you were drilling the holes in the pw, thanks for the video and your way of doing it all, you are so relaxing and funny at the same time.

@AttilaAsztalos 8 лет назад

That hand-drilling routine brings back memories, but these days I wouldn't give up my mini CNC mill for anything - engrave the traces, drill the holes, route out the board all in one... :)

@ronplucksstrings7112 8 лет назад

Thanks BC for another great vid! Handy tip: If you make and install a bunch of these floods around your house, you wont need rose colored glasses to look at the world anymore! This is an excellent video from circuit design to layout to board manufacturer to final test showing all of the steps necessary, and good explanations of the reasoning why at each step...with amusing Cliveisms interspersed "...white wine-like substance for peasants...". Great stuff!

@Jedda73 8 лет назад

Thanks for the video Clive, I quite enjoyed it. In regards to industry going lead free solder, it wasn't so much to protect workers from lead fumes, but to protect children and the environment near waste disposal sites who end up with lead flavoured drinking water when huge amounts of electronics are dumped.

@BrokebackBob 8 лет назад

That is a very clever way of cleanly etching and drilling a small PCB! Bravo!

@kevinhardisty6465 8 лет назад

Liked the project. Long videos are great! The comments about the over blown reaction to lead solder are so true. I'm an electrician too and liked the supermarket story. I work in a hospital, and have gotten zapped in odd locations. An operating room was memorable.

@RoPo-fv5tm 8 лет назад

to hell with it ... I learned more from you then I ever had during my 5 years of study ... I'm not saying my teachers are to blame... but you just make it far more fun with visualization of what are you working on. Anyway ... if you ever get around to read this :) ... I salute you and send a BIG thank you.

@bigclivedotcom 8 лет назад

+RoPo 0101 Glad to inspire. I intend to do more custom builds like this in the future.

@JacksonParodi 8 лет назад

great work, Clive! thanks for sharing it with us. One day soon, I'd like to build my own modestly bright, appropriately coloured wash light. since you mentioned detonation: I saw recently that the Isle of Man had a small incident with some unexploded WW2 ordnance. That looks like it was rather exciting.

@BrownBabyJesus 7 лет назад

I have a pair of 25+ year old xeron 170's I stole from my dad as a boy. They're great snips but, they look like these have lead the life of a pair of tin snips. One blade has the end missing and there is about 4mm of viable cutting surface but, still the best damn snips my dad ever bought!

@mc_cpu 8 лет назад

loved every minute. thank you. I'm currently experimenting with a Jacob's Creek Shiraz Cabernet red type substance

@coffeemaddan 8 лет назад

Great vid! Very interesting to see circuit design and repurposing. Glad to see from the comments below that you're planning on doing some more vids like these. I'll be watching them all with a tin of cheap aussie lager in hand. Keep it up

@dave1812 8 лет назад

Your Supermarket Story reminded me of a Job during my Apprentice Time :) I worked in a Supermarket where they put Mains Voltage on the Metalgrid of the Hung Ceiling, apparently to get rid of Rats :D The Store was closed so there weren't many people around. But it kicked me off the Ladder, and I couldn't stop yelling when I found out why I got a Shock.

@bigclivedotcom 8 лет назад

+DJ1812 That sounds more like leakage on an ungrounded ceiling. Not that uncommon.

@dave1812 8 лет назад

I wish it would have been that. The Ceiling wasn't grounded, but there was a Junction Box with a Single Brown Wire coming out, and attached to the Grid with one of those Fork Cable Lugs and a Self Tapping Screw.

@syragrippa8769 8 лет назад

It's been a long time since I etched a circuit board, though a little less than a long time since I soldered anything, but I think I could make this without too much problem. I enjoyed this a lot and there is much to be said for the experience of watching something being made, (probably more so if making it myself), especially when accompanied by Clive's dulcet tones.

@SuperMonkeyman90 8 лет назад

Clive you're such a big role model for me. Keep up the great work.

@markukblackmore 8 лет назад

So incredibly informative and also enjoyable to watch. Cheers to you Clive!

@VaupellGaming 8 лет назад

I think i will ask the local brothel if they want some of these. Both as working lights and streetlights ;)

@condor07uk 8 лет назад

im sure you'll get something you desperately want in return

@jlucasound 5 лет назад

They have to be Red. Wait; maybe not. "Roxanne! You don't have to put out the Red Light!" (The Police).

@TVV-04 5 лет назад

Hope you get to half a million soon Clive you sure do deserve it! Love your videos

@markn2904 8 лет назад

It's fun to see you tear apart stuff, but I like it better when you make something BETTER than it was. Keep it up.

@gingerjoe666 8 лет назад

i love these longe project videos. Could watch you all day long

@Zancarius 8 лет назад

+Audio Joe Clive's videos are oddly very soothing--almost zen-like! I usually tell myself I'll only watch one or two in the evening, and then I get caught up re-watching earlier installments.

@gingerjoe666 8 лет назад

+Benjamin Shelton Same with me. always ending in watching like 10 of them

@Anvilshock 6 лет назад

Whenever I tinker, I just start with one of his videos and then let RU-vid's Autoplay have a go.

@retro80s22 8 лет назад

brilliant big clive I really like the bare bones working of your circuits all on show it looks great

@SigEpBlue 8 лет назад

HELL yeah, Xuron! :D I LOVE mine. I use the cutters and a set of their pliers almost every single day. They have been nothing short of amazing in terms of quality and longevity.

@twocvbloke 8 лет назад

Very neat repurposing project, it'd be fun to see the superflux one too... :) And a possible idea for other videos, Clive's storytime, just talking about things you've done that ended with hilarity, embarrassment or otherwise, that supermarket story was quite a good one... :D

@BenjaminEsposti 8 лет назад

Using some SMD resistors and an SMD bridge rectifier, you could probably squish another row of LEDs in there. Also if you're worried about the isolation, you could use some nylon screws instead, and have nylon (eh, almost any plastic will do) spacers as well, to keep the board off of the back of the housing.

@tinytonymaloney7832 3 года назад

What a brilliant little kit for a newcomer into electronics. 👍👍👍👍

@NicholasAarons 8 лет назад

Nice Work Clive. Cool Lamp. Keep up the great work. Nick.

@NotRealNamesAgain 8 лет назад

Only found your channel recently, and I love it!

@ADogNamedChico 3 года назад

Great project, love your vids! Lead soldier can be toxic if used in plumbing as it leaches into the water, that was my understanding to why there was a big push for its ban

@SuperFredAZ 3 года назад

I bought an outdoor floor that runs on 12 V ac or DC. I bought a real outdoor transformer and so far it has been working for 5 years! The leds last forever but the supply lasts a year or two.

@edwinlipton 4 года назад

Hey Clive, I am a retired Contract Plumber and cut my first teeth as an apprentice pouring lead joints and sweating copper with 50/50. The lose marbles in my noggin are the same lose one's I was born with in"56". I have my own personal theory on the ban. It goes to x-ray protection from Nukes for underground bunkers built too protect those who lead us like hogs to slaughter

@TechGorilla1987 8 лет назад

Well done as usual, Clive! Thank you.

@davidharper4289 7 лет назад

Very cool clive. Thanks for the PCB file. I will give it a try.

@MalleusSemperVictor 8 лет назад

I recently had to enter rehab after playing the "I'm not sure" game. The bill is in the mail swimming in cheap Chinese LEDs, Clive.

@proyectosledar 8 лет назад

well done my friend

@quantumleap359 8 лет назад

Glad to see you consuming sustenance and an adult beverage during construction and design. Must keep that energy level up, keep those neurons perking! Great vid, as usual.

@raptor-san3352 8 лет назад

Great project. I learned so much from your videos, especially about soldering. Thanks for that. Keep up the good work! And greetings from germany :)

@manolisgledsodakis873 6 лет назад

I've been soldering for 56 years and no lead poisoning, yet, AFAIK. BTW you are correct to consider the voltage rating of resistors. I've seen many failures of lower voltage resistors connected across 350v DC. I prefer the 0.75 Watt/350v resistors sold by Farnell.

@databang 2 года назад

Your videos relax me. Thanks for sharing.

@MrBobWareham 4 года назад

Thanks, Clive for the memories loved it as always a good video

@ZeedijkMike 7 лет назад

Shouldn't the earth wire be longer than L and N so it will be the last wire to get disconnected I case the cable gets 'pulled' too much. Nice lamp. I can just listen to you for hours. It's wery therapeutic.

@blackturbine 5 лет назад

I can relax with his voice

@nolansykinsley3734 8 лет назад

The lead removal from solder is less about the person performing the soldering and more about landfills and improper disposal. It leaches into the environment and can end up contaminating aquifers and end up in people's drinking water, and there it really can cause serious issues.

@DonaldHolben 7 лет назад

I really like the way you lay out the boards :)

@bigclivedotcom 7 лет назад

I won't lie. Most of my designs have a hint of autism to them in their symmetrical layouts.

@mikebashpoint1954 7 лет назад

i have the 12v ver and its the best by far less power and just keeps working 18 months and still going strong :)

@entyropy3262 6 лет назад

"Big fat industrialized fingers" omg nice ! Your channel is really a nice find. Also it makes me want to improve my interest in electronics.

@JerryEricsson 8 лет назад

Speaking of getting a slight shock, brings to mind an incident in Viet Nam, back in 1971. I was assigned to a communications Center running the landline teletype system for an Engeneer Group Headquarters. Because of the heat in Nam, and the nature of the equipment, an air conditioner was included in our fiberglass dome type structure, covered with sand bags and withing a chain-link/barbed wire fence with a 24 hour armed guard at the tunnel like door into the structure. Our immediate leader was a very small Staff Sergeant named Tinny. Now one day that air conditioner failed, and Tinny was called to repair it. Remember, in the US Army, the leadership thought that anyone in communications knew all about electricity and could repair any sort of equipment that plugged into the wall. So SSG Tinny went at it, trying to work on that air conditioner, which was located at the far end of the building, in a sort of tunnel that was about 4 feet high, Tinny being all of 5 feet tall himself. He really was a communicator, but not an electrician. Every time he tried to hook up the wiring to the new unit he had installed, he came in contact with the live line and jumped straight in the air, smacking his head in the tunnel. In the end, there were three of us laying on the cement floor, Tinny from the shock, and the two of us working that day in laughter. After SSG Tinny backed off, I went forward and wired the unit, well after cutting the mains first much to the anger of both SSG Tinny and our commo chief who thought our landlines had to be on line 24/7. We were down for about 3 minutes while I made the necessary connections and then back up and running. That said, every time I think back to that day I have to chuckle, SSG Tinny came through it pretty much allright save a few bumps on his head, and a slight burn on one finger.

@L00NGB00W 7 лет назад

Thanks Clive. Nice build. I've always enjoyed using this mnemonic I came up with whilst trying to remember resistor colour codes. 'B'ad 'B'oys 'R'ape 'O'ur 'Y'oung 'G'irls 'B'ut 'V'iolet 'G'ives 'W'illingly without a 'S'econd 'G'uess.

@MYNICEEV 8 лет назад

Awesome build my good friend.

@jlucasound 5 лет назад

That clip is crazy! 100% seal? Wow.

@chrislawlor4809 8 лет назад

food in your videos makes them 10 times better haha, they're already brilliant

@themaconeau 8 лет назад

Perfect +bigclivedotcom! Many uses for this light and circuit. The pink LEDs could be swapped out for UV ones and used as a backstage worklight in theatre and/or forensic analysis (aka CSI) :P

@xsiner 8 лет назад

You make that look so easy.

@railgap 3 года назад

"a smoky, flamey fuse, but a fuse nonetheless". I had a boss who was fond of saying "everything is a fuse". And for sufficient voltages and currents, he's right, which was his point.

@lugzpugz9717 8 лет назад

great vid. love every project you do. keep it up mate

@jek__ 3 года назад

The good thing about embarrassing yourself in public with highly painful or intense experiences is that the experience itself tends to overshadow the embarrassment. If you're lucky your mind is too scattered by the event to register people's reactions lol. Man, social dynamics are weird

@jimcrelm9478 3 года назад

On RoHS: “RoHS and other efforts to reduce hazardous materials in electronics are motivated in part to address the global issue of consumer electronics *waste*.” Lead has been shown to have extremely negative effects as a pollutant: cognitive difficulties etc.. Waste incineration (possibly with energy recovery) springs to mind as a risk where discarded electronics are not separated from general household waste. With that said, the best way of reducing the hazards of e-waste would be to create less of it: Right To Repair and mandatory MTBF requirements at minimum, and ideally, an attempt to combat psychological behavioural manipulation (or "influence" if you prefer) by advertisers intended to promote excessive and wasteful consumption.

@johndrew6568 5 лет назад

bigclive, My first soldering iron was one that you had to heat on the gas cooker, lrg head 1/2" by 1/2" X 2" with 6" long bar and handle. very early 70's couldn't afford a expensive electric one. I made some good things with that, mind you boards were bigger!

@doadrian857 4 года назад

very beautiful explained,thank you for your time

@davidbloom8353 8 лет назад

Clive, nice video. Well done!!!

@mango3586 8 лет назад

HI CLIVE I loved watching this video it was so interesting I forgot to drink my cup of tea.

@tech-rich 8 лет назад

Great video. Looks neat!

@mbaker335 8 лет назад

Antex soldering Irons. Wow that takes me back. The Red X25 or yellow X15. So much simpler that the new soldering stations.

@nictamer 8 лет назад

Lead solder is banned in commerdial products not because it's dangerous to handle, but because it's polluting when the product eventually goes to the trash. Also heavy metals are neurotoxic long before they're deadly.

@herpnderpn2484 6 лет назад

Don't eat it and wash your hands. No soldering iron I've ever seen will gasify lead. If you were to get a hand full of dirt, lead would most likely be somewhere around 0.001-0.0001% of that pile.

@colinkraus7139 6 лет назад

I wish i could make the time you can to do this stuff. Awesome stuff.

@IANHANDS 5 лет назад

Time cannot be made. Time can only be used or wasted . Untill you realise this you will only ever waste time trying to make time , :)

@atbglenn 8 лет назад

Excellent video!

@dougle03 8 лет назад

Just bought some of those Xuron shears!! Nice recommendation.

@drkastenbrot 8 лет назад

I did too, as my knipex are wearing down after all the time

@AndrewGillard 5 лет назад

The Xuron snips aren't even that expensive, are they? I paid about £8 for a pair of Xuron 170-IIF (Micro-Shear® Flush Cutters with Lead Retainer) in the UK. They aren't the strongest snips in the world, so I have a pair of Engineer brand snips, model NS-06, that I use for most purposes, leaving the Xuron snips for cutting off component legs with that nice flat cut that they give. The lead retainer feature of the 170-IIF is super handy as well. It's not 100% reliable, but most of the time the snips actually hold on to the lead that you've just cut off, rather than letting it go flying across the room, which is super handy :)

@SteveSalisbury 8 лет назад

I think I've just polished off a bottle of Whiskey watching this, although not "100% sure". Thanks Clive!

@BrokebackBob 8 лет назад

Heath presents: Exclusive line of BigClive boutique kits!

@khachaturian100 8 лет назад

13:55 "... and a glass of a white wine-like substance for peasants". Brilliant!

@bikingmnviking3801 8 лет назад

+khachaturian at least he's smart enough to mix it with chocolate! Never seen that brand here in the states. I like the Andes mints and the anything swiss chocolate. Russel Stover is the poor man's Godiva over here.

@lfpi07 7 лет назад

This project would make a fun DIY kit :)

@CRCinAU 7 лет назад

I have to say, etching the PCB in a bag like that is genius...... I remember the old days of using a make-shift tank that bubbled crap everywhere and always makes a mess..... I've been learning too much from your channel... This has to stop :P

@jp-um2fr 4 года назад

I'm going back in time to watch the videos you did before I found you. As I too decided to test my heart by passing mains across it and ending up arguing with a Welsh dresser I feel we have a certain bond. I was told by my quack that I should have come to see her to have my heart checked out as it can cause problems. I said 'What like death'. I bought one of them thar earth leakage things. I wonder if you will read this 3 years down the line. Good videos Clive but 3 years in the future you don't do so many DIY circuits, I like them. Take care.

@bigclivedotcom 4 года назад

I have some DIY circuits coming up soon.

@cjs3780 7 лет назад

that was a cool video, you could use that for lighting set pieces for example, you could mount it behind a crystal statue and the light would shine through. that would look cool.

@maxximumb 8 лет назад

Really great video. Learnt a lot and, as always, very relaxing listening to your narration. I think how capacitive dropper power supplies work finally sank in. Is your white wine like substance home made, shop bought but modified or just El Plonko box wine like substance? If it isn't box wine, will you be doing a video on it's manufacture? Thanks for another excellent video.

@pirate6955 8 лет назад

the etching bag was just f@#$! brilliant man! cheers.

@viperlighting5174 8 лет назад

the lm 2576s adj p+ is a great soulution for parralel wired high power led like cree 3 w or rgbw 10w tota load or similar 3.3v 270 ma incredible results iv had im blown away with the output and duration

@sootikins 8 лет назад

Just in case someone at Xuron is following Clive I'd like to mention that because of this video I just bought a (genuine) Xuron 170-II Flush Cutter and a 440 Precision Scissor. I haven't had a chance to use them much yet but they certainly have a nice look and feel to them.

@JVerschueren 8 лет назад

Lead solder was banned for manufacturing because it's difficult/not cost effective to remove the lead when the PCBs become waste, not because of any user health concerns. In fact, soldering with lead free solder is worse for the operator than using 60/40 solder. The fumes from the resins in lead free solder are more acrid and the smoke particulates are finer, meaning they get absorbed into the bloodstream easier.

@JVerschueren 8 лет назад

Oh, and about prototypes failing on powerup. I had one the other week. I heard the telltale "ptss" -sound and, as the smoke wafted up to me, I stood there thinking: "Hmm, yeah, putting a standard 47 Ohm resistor directly across an unregulated 24Vdc supply may not have been my brightest idea". :-P

@highpath4776 5 лет назад

And possible contributed to cancer - though the smoking of woodbines on the workbench in the 1950s contributed too

@josh580 6 лет назад

Bought something very much like these and found out it had bad tracks. It was live and that went through silly choice countersunk screws. So I bypassed the fuse and disconnected one pin on the capacitor from the dodgy board (dodgy everything really) and now it works fine.

@darrannewman7113 8 лет назад

great build Clive, when using your new cutters does the slicing of them stop the wire from shooting out, i noticed you place your finger over the end, if i tried that with my standard side cutters the wire would embed its self into my finger.

@LegacyMicro 7 лет назад

Alright Clive, what's up with all the pink LED conversions? Are you secretly growing Ganja or what?

@BogusNotions 8 лет назад

This method is much better way to make PCB than the toner transfer method particularly when you leave the photo resist on.

@johanneskampmuller3266 4 года назад

Could you do some more theoretical videos where you explain things like the capacity dropper in more depth. Thanks, really enjoying your videos!

@grego3150 8 лет назад

i am totally hooked by your videos they are spot on with content and speed. I have recently built a couple of the maplins projects namely the thermostat and interval timer which run on 12 volts what is the best way to convert them to run on 24 volts?

@wakeupbomb 8 лет назад

When I saw the pink colour I thought they might be IR LEDs. It would be a nice unit for outdoor CCTV night illumination with IR LEDs.

@blower1 8 лет назад

Nice - although do be aware if you are going to use white helmet LEDs that used to be popular in early LED lamp designs - they will have a real world L50 of between 2000 and 5000 hours. L50 being the time before its down to 50% of its light output. They also commonly fail completely in this time spam. Always best to avoid the older leaded helmet white LEDs for any design thats going to have some long duty - not a problem for a PIR driven device. This only applies to the white LEDs that are UV excited phosphor - coloured LEDs have greater lifespans (depending on power output of course)

@johncain8393 2 года назад

Good one thankyou john

@godfreypoon5148 8 лет назад

14:40 - If I attempted this, I would have approximately 12,000 broken carbide drills.

@william_2610 8 лет назад

(±10k)

@bikingmnviking3801 8 лет назад

+Godfrey Poon Yeah, that's costly. At those RPMs even a simple brad snipped at an angle will "drill" a clean hole. If you want it to last longer heat it to red hot and quench it some peanut oil or tranmission fluid. Saltwater brine works well for low carbon alloy steels also.