- Dec 31, 2019
I recently bought a 2 watt laser diode on eBay and hooked it up with a driver consisting of one lm317t regulator and an ohm resistor. I hooked this up to 4 AA batteries and it burnt out in a week. It was a very powerful diode and costed $18 and I want to try again but don't want to waste my money. Any ideas?