I have been doing google searches and amazon.com searches and ebay searches all up and down the line, and I am quite flustered on the power option status of thor lights. Can someone point me to or describe the different 10Mcp thor lights (i have seen different looking ones... are they all the same truley?) and which ones are able to run off the DC power from your car? This is what i need the most, because we use it in a car, and the one we got before dies so fast.