I wanted to discover the schematic about Auxito T10 led bulbs, because many leds are failing in my car, then I discovered a damaged track, between leds, but first I wanted to know how it works. You can change SPDT switch both to left or both to right to inverse polarity, in both cases the leds always turn on. Max voltage from alternator 14V. 2835 Leds Max. 3.4V, 60mA.