Yea, I've got the Black & Decker spotlight you're talkin about. I like it but the 55w bulb @ 6v goes through that little SLA battery at a very impressive rate.
I think it's a 3ah SLA, and @ ~9 amps this things doesn't like extended runs (2 minutes tops hehehe) A few minutes of high output than
, you got your self a 3D m@glite..
I do like it though. I also have a Brinkman spotlight with a 35w bulb, I can't tell a big difference between the two, in terms of output. (The 55w and the 35w).
The throw on the black and decker is alot better though, it has an up-and-down filament, where the brinkman has a left-to-right Filament. (someone please correct me as to the correct words for the Filament placement..)
Your 6v/100w bulb is pulling ~16.5 amps!!! From a very small battery to say the least.. (3 ah I think..?) I bet the runtime is QUICK!
Also just for fun I put a peice of parchment paper under the black rubber housing to make it a flood light.