Any black headlight should work. The early stock Felt MP came with a front generator hub that will power the 3 watt bulb in the stock headlight and will only light about 1 foot in front of the bike.
I'll post up some pics of the stock headlight and what I currently have on it.
The stock felt...
Selling a set of red Felt 26x50mm single speed wheel set with front large hub on a used set of whitewall quick bricks. One of the tires has the lettering wiped out
$220 plus shipping or best offer.
Located in San Marcos CA. Local pick up welcomed.