Quote:
Originally Posted by GhostWolfGT
At 14.3v on 35w units my amp draw should be 2.44. If I'm calculating that correctly. 15LEDS at 3watts each is 45 watts. You would greatly refuse output to get to 15 watts per unit.
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The 15 LED cree lamps only turn on 6 of the 15 LEDs for low beam.
Then for high beam all 15 LEDs are turned on.
The 3 prong plug to these old H4656 bulbs has a ground, plus 2 power wires, one wire for low beam and one wire for high beam.
Why they turn on 6 and not 5 I do not know. They would make better low beams if only 1 row turned on. But I am using these 15 cell cree LED head lights as high beam only so it wont matter. Putting power on the high beam light makes all the LEDs come on.
I am pretty sure with old halogen bulbs, when you switch to high beam, it turns off power to low beam.
Then if you "flash your lights" some older vehicles are wired to apply power to both low and high at the same time if you already have your low beams on, since its only for a second or 2 it shouldn't burn them out too fast.
I have seen a mod where people combine the low and high beams for when the high beam is on, then they undo it when they start having replace head lights every few weeks.