HID and engine on causing City LED to flicker?
03-27-2016, 07:54 AM
#26
Super Member
03-27-2016, 10:36 AM
#27
MBWorld Fanatic!
When I get some new leads for my multimeter, I'll measure the resistance on the incandescent bulb and the LED to determine the correct resistor.
03-27-2016, 08:23 PM
#28
MBWorld Fanatic!
Just measured the resistance on the original incandescent bulb and it was 3.0 - 3.1 Ohms. All the different LEDs i checked were in the magnitude of kOhms to MOhms. So, my guess was right on the money; I just think I should've upped the wattage a little; so I ordered a pack of 10w x 3 Ohm resistors. I checked a couple other types of bulb I had in my toolbox, and they ranged from 1.0 - 0.4 Ohms. Unfortunately, I didn't have a license plate bulb to check, but I'll do that later when my wife gets home with the Smart, because they pop out really easy.
