Main Motorcycle: 2005 Bonneville Blue 790
Join Date: Sep 2006
Location: Central Maryland, USA
Other Motorcycle: 1973 CB450, long gone
What Bonza said. Get an Eastern Beaver or other relay kit, or do it yourself to keep cost down, you need two relays and associated bits. It's the best single improvement you can make to the headlight. Your existing bulb will be brighter, although it won't last as long.
It will also preserve your ignition switch, which can't handle the current very well.
2005 Bonneville Blue 790cc, AI removed, Staintunes RC, no snorkel, inlet enlarged, 118/40/NBZT needles/1 shim/3 turns, Ikon 7610s, Ricor Intiminators, Barnett green clutch springs, Michelin Pilot Activs, D9 gauge panel, tachometer.