I bought the headlight from motorcycle-superstore.com for $269.99. Half the price of some of the other LED headlights I was looking at. They don't make one specifically for the Speedmaster. As long as it's a 7in. headlight and it has an H4 Plug it's a direct plug and play. I ordered the 2007 Yamaha Road Star.

Before you install the headlight your gonna have to remove the little TAB on the top inside of the stock headlight ring. Grind it off smooth or cut it if you have the tools. If you grind it off do it in intervals so as not to heat the metal to ruin your chrome or paint job on the outside of the headlight ring. It's a snug fit, but it fits perfectly.
The led draws WAAAY less ampage so the light maintains a consistent brightness when idling. My stock light would dim significantly when idling.
The brightness. WOW!! Very bright. The low beam is brighter and shines further than my stock headlight on high beam.
On high beam, there's no words to explain the brightness. VERY BRIGHT is all I can say.
Side note though. on low beam there is a definite split with the light because of where the led is set up inside the headlight. But don't get me wrong it is still bright and worth it.
I'll try to get some pics and/or video soon.