There ya go. A 12vdc 40W light bulb that only uses 190ma. The possibilities for this bulb are endless. Hope i at least gave you some ideas:)
I wanted a 12 volt lightbulb For my home RE system that looked and functioned like a normal light, brightness etc. But one that didnt use a lot of power. I found these at LOWES for under $10 and decided it was time to hack:)
Step 1: The guts of the typical LED lightbulb
Well here it is, bunches of LED's. First thing you probably want to do is measure where the power is being delivered to the board. In my case it was 30VDC. BE CAREFUL not to look at the lights when lit. Also take a voltage reading across ONE LED while its powered on.