Hello again!
Couldn't find the time to make the MR 11 or MR16 mounts like I wanted so dug around in the spare farm parts pile and came up with this.
Steel 4" farm style light housing, Haligen trapazoid pattern worklight= 18 oz, I think I can mount it and keep it under 20 oz. There are 25 and 40 watt bulbs out there and flood style too.
Gotta 5 amp/hour SLA battery from napa for 20 bucks, its supposed to be for emergancy brakes on trailers=3 and 3/4 lbs. Too heavy and too big for a waterbottle cage.
10 AA NiMH batterys weigh 11 oz and a 12v pack would have 2.3 amp/hours.
Tried to find red beehives local but no luck, ebay is my next choice, I really like the idea of a 3D tail lite.