70 amp charger cooking 12v LEDs?
Will using one of the upgraded 70amp Progressive Dynamics charger/converters fry my new 12v LEDs (unregulated version)? I've seen talk of leaving the old converter in place, deck mounting the new o...
Forum Discussion
I think you've discovered how the inexpensive LED lights work. they use a dropping resistor to the LED BAD BAD BAD BAD design. Why? well, LED's are a constant CURRENT device, not constant voltage. Increase the voltage and you increase the current, which increases the power draw, which increases the temperature which decreases the LED junction drop, which increases current. Get the picture. Now bump the voltage to 14.8V or more agrivates the problem tremendously. Either they are dim at 12V or have premature life at 14.6V.
Good designs use a pulsed constant current design that has RFI suppression. not cheap, but much longer lasting.
Good designs use a pulsed constant current design that has RFI suppression. not cheap, but much longer lasting.
