This flashlight was cheap, and I was pretty happy with it, except for the disco flash mode it went into every other time I turned it on. Here's how to kill that flashing mode. Flashlight: www.sciplus.com...
Did exactly what you said and bridged those 2 points with a piece of wire and its perfect now. Bypassed all modes and just stays on full brightness now. I did it to spotlights for my motorcycle.
Thank you so much man. That shit has been aggravating me for a while. Mine had 5 modes. But now just ON (high beam) and off. Made the flashlight well worth the money now.
Much easier way is to just use a number 2 pencil and color or draw on the capacitor cover it well.. Done.. You may have to go over it several times but the graphite shorts it out causing it to not have memory..
That's why I like my Fenix, on-off and that's all the switch does or needs to do. It also has four intensity levels switched by a (gasp) separate push button. The way stuff should be. Think I only need a strobe if I want to disco in the woods.
My "led" flashlight is a little different then your's but I would love to meet the brain that thought of that flashing light. What a constant agreivation!! At least you showed it it can be done and it will take some experiment with my light but I appreciate the help.
Darn dude, for those of us who are doing by watching, you left out the most important parts! Why didn't you show us the WHOLE process, how you "took the top piece of plastic right off, taking the junction with it"(how?).... "I'm just going to sauter basically these two pins together - I busted the top off(again, how?), there were 3 visible sheets of metal inside, I sautered these two together bridging them(?)..." would have liked to have seen the whole process. Guess I'll keep hunting for a video that'll show it all. Too bad, you have a very pleasant way of explaining!
It appears many of these flashlights are using a mosfet transistor such as a 2n7002 housed within an SOT-32 package. The transistor is SOURCE grounded and the GATE is controlled. The LED obtains its ground signal from the DRAIN of the transistor. When the LED ground wire is moved from the DRAIN to the SOURCE of the transistor - this essentially bypasses that transistor and the LED is permanently connected to ground. Thanks for this video!!
It's a mystery why the Chinese believe that every flashlight has to have flashing modes. . I've found a few with 1 mode. I may try to hack a couple of the stroboscopic ones. Amusing video.
the flashing/strobe mode might be intended for signaling code, but could be used for self-defense. put it into strobe mode and aim it at attacker's eyes will "blind" him for a while. at least that's what i learned. just my 2 cents though. ;)
The chinese are copying from Surefire, and surefire back in the 90s were all about strobe "melting your opponents brain and banishing him to the other realm". The chinese have zero experience with firearms and such so they just assume that is what people want. Thats why they also still utilize on/off switches even though momentary switches are more valuable for use and cost less to produce.
Just a quick note for anyone else who's trying this and watching this video. The version of flashlight I have - it didnt work to jumper the mosfet - it just locked the flashlight into low mode. Some googling led me to a site with an ingenious hack - the flashlight "remembers" which mode was on last because of a charge in a capacitor on the board. If you short out the capacitor, it cannot remember which mode, so it always starts in the default mode. Best part? You can short it out by scrubbing the top of the capacitor with a graphite pencil. The graphite is somewhat conductive, and will short it out. Here's the site that describes it: www.canbike.org/information-technology/flashlight-modification-remove-multi-modes.html
Brilliant!! I performed the "pencil trick" on a few of mine and it worked great! It essentially locks the last mode. I can still half-push through all modes but whichever was last, comes on eternally until I, yes I, change it. Thanks much!!!
It is easier to just bypass the circuit all together. If you solder the red wire to the spring and the blue wire to the silver part which grounds to the outer part of the metal casing on top of the board it will bypass all of the modes leaving only solid light.
I had to also modify on/off switch becuase it was not actually hardware on/off, flashlight was permanently under voltage and switch was just a button to change modes, which is totaly stupid because it consumes electricity even when it's turned off. Why are today producers doint such stupid products? Why can't be things just logicaly made?
dose anyone know how to remove strobe from the CREE U1 fog light? i can find info on every other light thats out there but the U1.. any help would be appreciated
I'm not familiar with that light in particular--good luck! Worst case you could hack in a driver circuit for the LED that doesn't include a strobe, but I don't know how cost-effective that would be.
