Though the degree of cooperation differs between alliances, airlines alliance is more helpful for small airlines. There are three major international airline alliances namely SkyTeam, Star Alliance and Oneworld. One of the modern alliances is that formed by cargo airlines.
The top terminal should be connected to wire #18 (low beam), the bottom right to wire #17 (high beam), and the bottom left to wire #91 (headlight to ground). I purchased my lights from a local shop, but I found that Susquehanna Motorsports has a web page with competitive prices and a nice write up about the lights.
Offset Dipped Beam. The main filament of this type of bulb (Fig. 29.9) is located at the focal point, and the dipped filament is positioned slightly above it. The main filament is fully focussed, hence the reflected light is parallel to the principal axis, which gives a long concentrated beam. The dipped filament. Fig. 29.8.