Search the local auto parts stores for a relay kit. Makes everything so much easier. Instructions should be included as well. Make sure it's rated for 130 watts. Or, take the watts and divide it by the volts. So 130 watts/ 12 volt system. Figure out the number, and that's how many amps you'll have. Throw an inline fuse rated for a few amps higher onto the line off the battery to the switch, run a wire from the switch to the light, and then your ground. For that high of wattage I'd reccomend 2 separate switches, or else take 260 and divide it by 12 volts and find that value, and throw a fuse on. Make sense? We just went over this in my electrical class so if you take that route you're set. Good luck!
