Ok, so I got me a 5mW newwish laser (the one called "true green" on DX), it's really cool, the weight is right, the size is right — well, I like it. There's one problem though: it's too bright. I'm going to use it as, well, laser pointer on a white screen several meters from away, and right now the spot rather uncomfortable to look at.
So I want to power it down.
I disassembled it and tried to turning that resistor, but ended up increasing the power a bit — the current was ~280mA initially, now it's around ~350mA, and I can't get it back down for some reason. Ok, I have no reliable 3V source right now, I guess I'll try tuning it again once I'll get something to power it from without the need to hold the module, the probes and the batteries with only two hands.
Anyway, before I do that: does anyone know if it's possible to reduce power of these things? And how much? Maybe changing the resistors on the board etc?
So I want to power it down.
I disassembled it and tried to turning that resistor, but ended up increasing the power a bit — the current was ~280mA initially, now it's around ~350mA, and I can't get it back down for some reason. Ok, I have no reliable 3V source right now, I guess I'll try tuning it again once I'll get something to power it from without the need to hold the module, the probes and the batteries with only two hands.
Anyway, before I do that: does anyone know if it's possible to reduce power of these things? And how much? Maybe changing the resistors on the board etc?