ordering an hid kit for my 2004 f150 fx4 Screw. what size bulbs do I need for my truck? its one bulb for high and low beam isn't it?

 

Yes it is one bulb for high an low. The bulb is called h13. U can get either a single beam or no xenon. Single is cheaper and I never use my high beams any way. Mine had a halogen hit beam bulb and it was awful. Luckily the low beam was plenty bright enough. I'm actually selling mine since I'm putting a plow on my truck and they can mess up hids.

 

9008 is same thing as h13