Crummy headlights - Can't see, need upgrade
My old 2007 GMC has never had the best headlights. Driving from Lethbridge to Calgary last night I was really cussing them. Old original factory headlights and I cannot see worth a darn. They are...
Forum Discussion
Gdetrailer wrote:Wow, sounds like poor design to me. I'm surprised they don't use a PWM circuit instead of having to get rid of all the heat from that resistor. There's no guaranteed airstream to cool the resistor as with old-school heater fan resistors.
Generally for headlights the manufacturer uses a resistor in series with low beam filament, dropping the voltage and brightness for that function.
