I bought some PIAA lights off CL yesterday - looked in good condition (except rusted mounts). Anyway, no identifying marks on them to tell me voltage, model, etc. Is there some way to figure out what watts they're drawing? The bulb looks like an H3, but I haven't pulled it apart yet. Also, in the third picture, there's a little rubber L-shaped nub by the wiring. Is this for anything? I ask b/c I know the H3 bulb has a wire that somes off too, and I wonder if I'm missing a bracket or something. Thanks!