Low beams not working

Yesterday I decided i was going to wash the engine bay out in my truck, I have done this many times before and had no problems. well this time I washed it out and when I was done I left the car wash and when i went to turn my head lights on, only the highs came on when I turned the knob, no low beams and nothing happens when I flip the switch for the high beams. So now I'm stuck driving with my high beams everywhere. Does anyone have any ideas what could be wrong?

 

Start checking for 12v at the lamps. 12v? Lamps bad. No 12v? Keep looking.
The leads may be corroded, cut or water is shorting it out. Clean and use dielectric grease on the connections.

 

Im guessing bulbs. i think they run from the same fuse and power so maybe some fluke thing happened.