Under Door Courtesy/Rock Lights
06-28-2015, 01:12 PM
#11
JK Super Freak
More or less. It's not just the PWM from the circuit, but when the light goes out, it does so gradually, which causes more relay chatter and will likely burn out the coil faster. I'm going to try a capacitor across the relay coil and see if that helps at all.
06-28-2015, 02:21 PM
#12
JK Junkie
It should help. Just not sure it will completely eliminate it. This is the same problem people have with the factory fog circuit. PWM is great for controlling LEDs, and since the domes aren't LEDs, I'm surprised it is a pwm wire. Let us know how you make out with the cap and the size and all. Could help some others.
06-28-2015, 05:27 PM
#13
JK Super Freak
It should help. Just not sure it will completely eliminate it. This is the same problem people have with the factory fog circuit. PWM is great for controlling LEDs, and since the domes aren't LEDs, I'm surprised it is a pwm wire. Let us know how you make out with the cap and the size and all. Could help some others.
06-29-2015, 02:11 AM
#14
JK Junkie
Interesting. I know it is the preferred (most accurate as opposed to using resistance) method of controlling brightness in LEDs. I didn't know that was also true for incandescents. You would think applying and eliminating power across a filament would reduce its life cycle.
Last edited by 14Sport; 06-29-2015 at 02:56 AM.
12-22-2016, 02:07 PM
#15
JK Newbie
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Just finished the install of two different kinds of light. I will say the strips of LED look better because they cover a bigger area but the LED bolt lights under the doors definitely put out more light. This will last me until I can afford to put in a good set of rock lights when I buy new fenders.
11-18-2017, 02:50 PM
#16
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Originally Posted by ShutterBug
Reviving an old thread.
Has anyone dealt with the PWM problem with the dome light? I am powering my rock lights from a relay. I have a SPDT switch, that when in one position, powers 12V to the relay, which turns on the rock lights. The other position, ties the dome light power (yellow w/white stripe) to the relay. The problem is, as the dome light dims, the relay begins to chatter. This is going to wear out the coil pretty fast.
I've read a few things here about diodes or capacitors, but I'm not sure this works for PWM power sources.
Has anyone dealt with the PWM problem with the dome light? I am powering my rock lights from a relay. I have a SPDT switch, that when in one position, powers 12V to the relay, which turns on the rock lights. The other position, ties the dome light power (yellow w/white stripe) to the relay. The problem is, as the dome light dims, the relay begins to chatter. This is going to wear out the coil pretty fast.
I've read a few things here about diodes or capacitors, but I'm not sure this works for PWM power sources.
