I don't know. What was the purpose of the WW resistor, and why did the original designer use it? A circuit diagram might be helpful.Is it possible to replace a wire wound resistor by a simple resistor in a led driver?
I broke it by my fault.
The output is 45volts DC.How do we know the resistance value???
Looks like this was pulled out of an LED bulb, the kind that runs on 110 or 220 VAC. I have a few of them laying around too - units that have failed and pulled apart just to see what's in them. Just be careful. Messing with high voltage AC is dangerous. Off hand I don't know what the output voltage is supposed to be, but I've raw driven one of those LED rings (out of the bulb) with a variable power supply. I THINK I pushed around 4 to 12 volts DC into it. Scared to burn it out - no resistors in circuit - I only tried it for a moment. And sometimes a moment is all it takes to smoke the LED's.
by Aaron Carman
by Jake Hertz
by Aaron Carman
by Duane Benson