12v Headlight problem
I bought a set of 7" 12v headlights and found the hi and low beam filaments joined instead of being two separate filaments with a common ground. The result when applying voltage to the hi beam filament, voltage became available at the low beam filament contact as well. And visa versa.
The only solution is to use a relay to power hi and low beams. Wiring directly to the headlight just as the 6v lights were wired causes the red dash hi beam indicator bulb to light in both hi and low positions. BTDT
My question is regarding the bulb filament. Has anyone ever gotten into a 12v sealed beam to understand the physical difference of between a 6v and a 12v bulb filament?
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