To add to the list of possible reasons a light would fail to respond to clicks and exit turbo mode, my friends D4 did the same thing after I accidentally popped off the R5 and R4 resistors while disassembling for an Anduril flash. We managed to get R5 back on, and we thought we got R4 back on as well, but it only looked like a good connection, actually it was open circuit.
With R4 essentially unpopulated, the light seemed to run fine, except it would not enter any strobe modes, and once you entered turbo, the only way to exit was to disconnect power. Very strange. According to zeroflow, āR4: MOSFET current-limitā. So this would seem to make sense?
Who knows. I fixed the connection properly and itās back to normal now. Just thought Iād chime in with my experience.
d4buyer. Ok? Cant remember password.
unintended connection somewhere, allowing power to bypass the driver entirely. - how is it easy to fix? I am just an office worker, so i am trying to get answer, as hank is silent for over two months. Just got tired of nokia as a light.
Seems to me it was ToyKeeper that started the tint mixing thing with her Terminator.
I also did it years ago with a ridiculous Quad XHP-50 set up in a Lucky Sun D80. Very neat look, had to keep it reduced using 2 18350ās as with 2 18650ās itād make the light too hot to hold in mere seconds.
This was one mighty fine little light. Got mine today and Iāve played some with it. Only problem I see is that it ramps very quickly down from high levels since it get hot.
I also read a thread on laser forum where a guy got a 1watt laser into his eye and got permanent damage. This sounds really scary and I got to think of dangers with powerful flashlights like this and kids. Is it safe to let my kiddo use this? Sheās 4 and really liked this little light, told here to not touch the button on it and use it at the level I set for now and Iām watching all the time. Am I paranoid?
My nephew is 4 and is not allowed to touch my D4. His father does not let him touch his D4 either. He has his own little AA LED light that he uses and feels like itās the same as ours.
Too much potential damage to skin, eyes, furniture, etc, in my humble opinion.
I would do 2+2, I doubt that you would see a difference with only one 3000K in the herd.
I love it, SST20 have a small die so you gain some throw compared with 219C or worse, LH351D.
Iāve tested both, and the SST20 are my favorites, because of the gain in throw.
The tint mix is really nice, but I already like both tints so itās not really a surprise
Hmm, maybe not. I think Iām gonna try it though, mostly because I only have four Nichias to my name, 3 4000ks and a 3000k. Thereās a fourth 4000k in my buddies H03 that Iām gonna swap for a LH351D next time I see him, but that wonāt be for several weeks. I really want a nichia D4, the D4 was my first light that I got before I knew what tint I wanted, so itās a 6500k xpl-hi, no gracias lol.
Some degree of trust is required, of course. People canāt even go outside without being exposed to something dangerous. I mean, some kids stare at the sun just because they can. So this is really something you have to determine on your own, based on how trustworthy your child is.
Almost any LED can cause eye damage if itās running at more than a few milliamps. Staring at a modern LED is a lot like staring at the sun. And almost any battery can start a fire if the user shorts it to itself or something. So I canāt really say any flashlight is 100% safe.
A S2+ with a 3x7135 driver (or, even better, 1x7135 driver) is a lot harder to cause damage with. However, Iād suggest going even smaller if possible. Maybe something with a single AA or AAA Eneloop battery at first.
OTOH, a parentās job isnāt to protect their child from the world, but rather, to help their child explore the world. If they make a mistake and start a fire or hurt themselves or something, itās not necessarily a bad thing, as long as the damage isnāt permanent. It may help them learn caution. Making mistakes is one of the fastest ways to learn, as long as the mistakes arenāt too big to recover from.
TL;DR: It really depends on what kind of person your child is.
