Honda F2 headlights? Help!!

i was wondering being that im new to riding, i wanted to get a new headlight bulb for my '92 F2 and im only familiar with cars headlights. like 9005 9006. that sorta thing. What is the # for Honda F2's? i looked through the manual i have and all it tells me is the wattage, is that what they are sold buy? Any help would be greatly apprec. Thanks

I think it's a H-4

best bet is take the bulb out when you want to exchange it.

usually sold by style of the base, h4 is standard
then wattage low beam/ high beam
and finally color, whether its white or blue tinge or whatever