Inside a bug zapping lamp (with schematic). 

Clive is a true Engineer in his DNA. Engineers MUST take things apart to understand how they work. Their curiosity will not yield. What a fun channel. We need to get him to 1M subscribers!

"Electric hazard- kids don't touch" -Well, how else would they learn. My sides

If I remember correctly, biting bugs, like bed bugs, mosquitoes and such are attracted to heat, not light, which is why they’re such a pain from dusk on, because our bodies heat contrasts with the cold surrounding surfaces more when the sun is down making us more visible to them. Thanks for your videos, they’re wonderful.

You are so awesome Clive. I have been binge watch your videos and it is starting to sink into the "understanding" part of my mind. Mechanicals, I can see, and understand. Electronics always fascinated me and eluded me. You are making it clearer. Thank You. You are a Professor.

Excellent volume. I can hear you. Don't go back!

im running my sound through a 1986 Hitachi stereo amp and 200 watts of big speakers . your voice shakes my house lol.

Neat little lamp i may try making one my self.Sound level is nice and calm.

I can't help but think that the LED board would make for a nice clockface with a quartz mechanism rammed through it's backside, and of course would have to be lit up, somehow... :) And Tartan Mains, I guess that's used by Scottish Power... :P

"I shouldn't be poking my finger in here" pokes finger in there.

My PC speakers have a subwoofer for the full THX BigClive Experience

It's important to introduce children to electricity early. Regular doses will help them get used to it, so that when they are older they are more sensible around it. Less binge shocking as adults

the audio sounds incredible clive! Also, incredibly clear. it almost sounds like a voice over. Haha

"Big Clive's Little Pink Test Socket" - That's a new song idea for ya.

Clive, Bangood is a source for the HOPI, I've just bought one

The audio is perfect by the way, Clive sir

The LED retrofit panels for ceiling lights (like the one from yesterday) are also available with the SM2213EA chip for selecting the colour temperature.

You know you are literally the only person in the world who has a nearly *300k RU-vid subscribers* who is *editing videos on their phone* !!!

these bitey little buggers don't like vicks vapour rub I think its the eucalyptus the downside is you get bitten by a koala bear

Yay for usable volume levels! Usually I watch a Clive video then watch some other video and get blown out of my seat by the volume being cranked right up.

I got myself one of those isesamo tools that you use. Actually, the first time I ever saw one was in one of your videos. I was wondering what it was, so I paused the video, took a screenshot and zoomed in so I could see what it said on the handle lol. I then went to eBay and bought one, but made sure it was an original, not a Chinese one lol. I absolutely love it. 😜👍🏼

1:24 😂💕 “how else are they going to learn” 5:30 “blowing everything to shit” LOL

Would you ever consider doing a series of video tutorials on circuity for beginners? I and I imagine many others would watch something such as this.

Thank you BigClive. I am learning so much from you. Btw, I saw the fastest lap of the aisle of Man TT. Mind boggling. New record 2023. Makes me more concerned for the men that challenge that time trial. The machines are becoming so powerful that the penalty for failure sadly stacks up against them.

Here’s an idea; take the chip off, and rewire the board so there’s one common, and the other leads of the LEDs are brought out individually. Now make a bug-zapping clock out of it, and have the UV LEDs blink on and off at one second intervals like an old-time VCR (until you set the time, anyway.) Fun, fun, and naughty! I’m sure the inventors of this didn’t have a bug-zapping wall clock in mind!

The future's so bright, Clive's gotta wear shades!

I looked for the Hopi on eBay and found ear candles! No doubt used for reading in bed.

Great improvement in your audio!!

I love your work. Can you do more on lighting and DMX and like a sunlight controller?

The Hopi looks to be very handy. Never seen one before..

"How else are they gonna learn?" 😅

The audio sounds much better. Please leave it louder on future videos

splendid video clive

The new audio quality makes you sound close and intimate, like you are in the room with me. I love you dearly but please stay out of my room.

Hi BC, Love the video, still giggling about the "how else are they Going to learn" comment, that is exactly how I got edumikated about lektrizidy. Hopi's hop up on ebay now and then, mine both have data logging software and USB connectivity, they have done away with the speaker terminals so no need for the deathdaptor. I'm surprised by the Hopi readings, I must try mine for accuracy at low currents. Thanks for another great teardown.

I like the lamp holder I got the orange one !

Clive, do you have any recommendations for really good OTA TV antennas? I suspect I have a neighbor screwing up my reception and it sounds like this antenna actively blocks out cell phone interference (would like to know for sure how good it is before I buy it and the reviews I find appear to be by non-electronic minded people who don't even know the meaning of a "directional antenna" as the ad claims). Can you do one? If not does any one on YT do any? My old analog 18 foot antenna is not cutting it. Thanks

Hey BigClive, thanks for another fun video. Where did you get this item??

have you ever done a video on the hopi tester? is it an expencive item?

in most cascades the input rating determent the caps used as far as i know. i got many cascades out of electrostatic speaker that hold 400 and even 250 volt caps and multiplies up to 5 kv, they did so for 15 years :)

Last month I bought a Philips "scene switch" bulb, 9/4/2 watts. I'll bet it is the same type of chip in your zapper bulb. I was wondering how that worked. Thanks.

Clive : "This Is Actually Quite Hard To Probe, It's Quite Wobbly, It's Moving About" 05:55 You can assign this statement to any number of situations.

do you have a big enough calculator

So, the other day, I was browsing mouser, and I saw a 10 Teraohm resistor. What in blazes would that be for?

I've tried one of these devices in my back kitchen a few years ago. Unfortunately it didn't zap houseflies, bluebottles and wasps to death but harmless moths, butterflies, and daddy longlegs. The volume of these perfectly innocent insects that where lured in by the light to be zapped and fall into the "death tray" underneath that needs frequent emptying will no doubt provide positive feedback to the owner that this device works great. Disease carrying flies never bother with it, preferring the bin or any food left out or even a roast left resting in the oven (they find their way around the back and up and in). Also the dog shit and cat shit from the neighbourhood. Utterly useless devices. I tend to encourage house spiders instead. Keep the fresh webs and dust away the old ones. ;)

My brother has one of these he loves it I love that I now know how it works

For reliable UV LEDS Cree seems to offer the best performance (and lifespan). Are those caps potted ceramic? I'd have expected "HV" disc ceramics in this application.

Mine arrived today from Bangood, very bright! :) However, it doesn't seem to do the dimming thing. First switch on and you get bug zapper and full brightness (I assume - it is very bright.) Next on/off - same brightness and Bug zapper. Next on/off - bug zapper only. The pcb looks identical. (I checked for a solder bridge on the chip - none.) Re: Chinese translation via google on the IOM - Have you tried using a VPN app to spoof your location? Just a thought :)

Not that it matters because the whole unit is sealed up with plastic, but the one side of the zapper that is connected to mains, it would have little if any voltage if it were connected to the neutral leg. BUT, not sure if you have a neutral leg with your high mains voltage. In the US, we have three wires coming in, two hot and out of phase giving 240 volts between them with a neutral (close to ground) being electrically between them (practically ground altho it is not for use as a ground (it may have up to 3 volts on it) which gives you 120 volts between it and either hot. The standard power mains here is 240 volts which is split with a neutral into two (and out of phase) 120 volt circuits.

May be Google translate can do that translation properly now, but just thought to roughly translate the data sheet bottom 6 lines, it says something like: Typical application: R1=R2=10O when 0.3s

So where's that 172V sourced from?

The second time you powered it up, I was wondering if you would remember to short it out :D Have you ever shocked yourself on one of those devices? Would they give a bad shot?

And people will use these with es to b22 adapters there by getting phase directly on the outer mesh. Got a similar one here to play with. Since it's on an rcd and you have to intentionally put your finger I it I call good enough but not something to put in a lamp where a child can reach. As a 3year old I pulled a night light partly out the wall and dropped a 4 inch nail across phase and neutral on a socket with rewritable fuses. Big flash bang lol. One of my first memories lol. Half diameter of nail bunt into prongs of the plug. Old style nz without insulating sleeves. I'm sure one of these lights would be rely entertaining to some 3yo.

Big clive quote of the day. "I quite like thus as an open side case, have all the live circuitry poking out the side; that's pointless."

Omg dude i Love the break down of the circuitry but holy Smokes ya killing me with the popping open of the bulb x) they Screw off. Except for the bottom cables ofc. Unless mine's' are different model, which i wouldn't know much but Still gaves me anxiety Seeing the popping off apart the Sections Lol I've been Looking to fix my bilbs as they began to flicker one day and then the function to the Light gor Somewhat wonky. I think i needa resloder Some components. Not Sure which ones though. Ps. Yes. You're correct that the bugs that bite definitely don't pay much mind to the Light. So it's probably counterintuitive to have this bulb Set Up for that reason imo. However, i have Seen a few female mosquito Stuck on the Zappers when i done Some maintenance every now and then. I just know Some aren't fooled, as one day i had to connect tje extension cord to my Lamp desk and chased the Skeeter around my Shed Swinging wildly tryin to make it fly through the bulb haha.

“Stick the fingers in, stick the fingers in, didn't get a shock; it's discharged...”

I HAVE ONE OF THESE! I LOVE IT! I LOVE CLIVE!

Where did.you get the "HOPI" Clive?

put a bunch of neon indicator lamps in that empty case, or a bunch of those flicker candle things, it look pretty cool

Is there a polarity standard for the ES fitting? It would perhaps make sense for the screw part to be Neutral, as if anyone was changing a bulb without knowing the power was off, it would be easier to make contact with that part. On that assumption, it would be better for that side to be the direct connection to the grid.

Clive... everytime you increase the exposure, the HOPI meter stops hopping !!

Hi there Clive, I just have one question. How high is the voltage/current when the zapper circuit is triggered?

Thanks

where do you buy this lamp?

We have tv the size of his calculator. Awesome video

What about a field trial at chez Clive although I don't think there are any flies on you!

What video editing software are you using on android? And can it cut and join clips. Im using shotcut freeware on pc , but it requires me to mess about getting the footage from my phone to my pc .

"Hello, Help Desk. Have you tried turning it off and on ... and off and on .... and off and on again?"

The question I wanted answering is "does it actually kill flies?". I've tried several of these Chinese bug zappers including the fancy spherical one that Clive tested which sucks them in, but none of them attract houseflies. They only attract small moths during the night (we don't have mosquitoes around here).

i've had this light inside above my front door for about 2 years. i dont think it's caught very many mosquitos. the cold white isn't the greatest either. it acts a little wonky when i use the dimmer switch, but it does work to an extent. i've never seen the other colors - i have a suspicion they dont really manufacture them

Whats your opinion on the antex xs25?

I can't find any Hopi meters on eBay but Aliexpress has them for £42.

The bitey bastards are drawn in by carbon dioxide. I've seen good traps created by a cut in half bottle with vinegar and baking soda in.

So what's a good power factor and bad I have a kill a watt but no instructions

We have a huge insect extinction but bug zappers aren't illegal.

Awesome

Are there any circuit apps like everycircuit? Everycircuit kind of sucks..

one thing that attracts biting insects is a compound called 1-octen-3-ol, found in sweat and the oils produced by the skin

those slow burning green coils beat that lamp for efficacy . as an education aid for curious minds, the lamp wins .

HOPI meters are still available on aliexpress by the look of it.

Sir can you please tear down DOB led bulb

The light of the LED looked more like it's warm-white, but on the packaging it said it's 6500K cold-white. So was this just a color distortion from the camera, or were they actually warm-white?

they sell those in a chain store in the us called freds and looked very similer

What software are you trying out Clive?

Dunno what you've done, but the audio is so much better in this video compared to others recently. Well done. EDIT just heard your comment about RU-vid's new edit function. It works!

The biting ones (mostly female mosquitoes) are mostly attracted to the CO2 we breathe out, with other factors, like body heat and smell, having some effect too, but CO2 is good bait. Some good bug zappers take advantage of this, or you can add an acid to a base (vinegar and bicarbonate of soda is a classic safe one) to get the same gas to attract mosquitoes.

I’ve got one of theses , and I didn’t know you could change setting on it 😂😂😂😂

IR or even just a warm resistor would do a better job at attracting biting bugs. They find you by both scent and body heat

What other colour fitting and cable could it possibly be but lurid pink! This comment was (of course) accompanied by a Kenny Everett style leg cross

How else will they learn! 🤔🙄🤗

I wish Clive used the power meter that he used to use in his older videos. The flickery HOPI meter is not meant for videos.

Do they make zappers with infrared LEDs?

"Kill A Watt" meters are everywhere.... not sure how accurate they are but if you're near a harbor freight you can score one same day no shipping if you really need one

#TartanMainsSymbol!

The calculator is quite hard to read, do you have a bigger one? :U

I understand volts amps watts etc but could you explain power factor plz

Considering it's a chinese product. The 400 v capacitor is probably a misprint that they got for cheap in bulk lowering their costs. Which would explain their use in a location where you'd imagine that it would fail.

Forget high voltage circuits for killing insects, just do it like i did, stick a few leds in a tilapia tank and they will eat all night!

"Chinglish". That's a good one!

I wouldn't worry about the volume. I have mine set to about 1/4 of the volume slider. Otherwise it blasts me out.

Brennstuhl has some meters that can do everything the hopi can for a low price very good devices