I know this is an old post but still many come back to read updates
The lights are very nice - but why not check out ur local 4by4 stores first and there you can ask questions in person to the sale prep. as far as bulbs and lights. I changed my original sealed beams to a clear lens with an HH4 bulb.. wattages 90/100 without any change or addition to the wiring. There strong, bright. 2 lights around $100 plus 2 bulb pkg another $25 tops... take the old ones out and put these in their place... viola....