I've got an old school million CP halogen spotlight. Its very bright but there are a few downsides:
1 - It is halogen and it sucks a lot of juice
2 - It has a very wide, non adjustable, beam. When I click it on it tends to light up the deck, sails, rigging, everything ... and I immediately loose my night vision.
3 - It is corded so I have the damned cord in the way most of the time.
So I'm looking for a rechargeable, LED with a focus-able beam. something that could be very narrow when necessary. It does not need to be 1 million CP, I'd think I could get away with as little as 200.