Ok not rocket science but... LED bulbs have to go + to + / - to - or they will not light replaced my dash bulbs yesterday with blue leds (they look really cool BTW) knowing they had to be polarization (IS THAT A WORD?) correct... i replaced all the bulbs then..... with a 9v battery and some short leads taped to it I powered up the dash lights while face down on the bench simply by touching the leads to the far left bulb (above oil pressure gauge) contacts (the gold/copper that is exposed next to the bulb socket) the positive is toward the top of the cluster... they will all light if installed correctly if some don't light then remove and turn 180 degrees... beats installing the cluster only to find some won't light...
just thought I'd share
as a side note: I was surprised that they DID in fact dim with the dash dimmer switch... I got them off ebay each bulb has 3 leds on it... think they were $6 for 12 bulbs free shipping...
just thought I'd share
as a side note: I was surprised that they DID in fact dim with the dash dimmer switch... I got them off ebay each bulb has 3 leds on it... think they were $6 for 12 bulbs free shipping...