To be honest the Cadillac's were probably more wattage, but on low that wouldn't really matter. I seriously couldn't put them on high except just to jump start the heat. I never did see the specs on each, because I had no need. Mine were on an Eldorado and heated very well and very evenly, so like I said, even if I had to cut the plugs and wire them directly I would. Best heated seats I've ever seen. They're really only heating pads stuck to the foam and then covered with leather.