So I sorta kinda made a misstep and bought some sizable LEDs.
They’re 15 volt green LEDs 3 to a module and I bought 3 modules, though I’ll probably only use 2. 14 lux at half a meter (no clue what that means in the real world) They’re also waterproof (or resistant) which I totally don’t need. So yeah they’re overkill but I don’t care.
Anyway, I don’t have a 15 volt power supply laying around. I do have a 12 volt power supply but that won’t make them light. So I’m wondering how I can turn 12 volts into 15 volts. I can also get my hands on 19 volt supplies from Goodwill. I also found a 14.4 volt supply but that was a multi-voltage drill charger and I don’t know if I want to deal with that thing. So does anyone know how I can use any of those supplies to light these babies?
The second part of this is I want to dim these. I plan to use a 555 chip functioning as a pulse width modulation circuit. I’m pretty damn sure I can’t run run this much power through a 555 but I can run it through an electrical switch. I think I could use either a relay or some kind of transistor to get the desired on off action. And if anyone has a good guide for what the heck each kind of transistor does what (Mosfets, Jfets, Bobba Fett) I’d be very greatful.