Headlight Bulb

Last night I went for a ride and I had no lo beam. High beam worked fine. I store my sled remotely, so I can't identify them easily. I plan to replace both bulbs, but I don't know what type they are. Owners manual and service manual both say 55/60W, but not the type(H4, H7, whatever). Anybody know the bulb number?

P.S. this is for a 2002 Venture 700.

Bulb is an H4

Thanks for the info.