Looking for knowledge.

You guys know alot more than me, can you take a look and tell me what you see in the workings and components ?
The first driver came from a 12v golf cart headlight, cant find info on it, just know it was 12v.
Other 2 are low voltage lights from a motor home (12v) but when i bought them it said 12v-30v DC or AC if i remember right.
Then im pretty sure the thermo switch cuts off power at 65c or on ? Could that be useful for anything ?
Then the resistors, im about to look them up, but whats the values and when and where could they be used ?
And lastly the MosFets ? At least the 3 legged one but not sure the 2 legged one is, maybe a diod ?
Thank you for any and all help teaching a greenhorn.








Tip for looking up resistor values.

  1. The last number represents how many zeros there are.
    So 272 would be 2.7k, so on and so forth.
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