Looking around Harbor Freight found a battery powered LED bicycle handlebar light that fits on the Bimini frame and spreads a perfect spotlight to aid folks coming and going on board in the dark. Mounted another one to spotlight helmsman location. Only $6.00 and they work great.
another idea that quite a few folks are using at my marina are the solar powered walkway lights available at walmart, ace hardware, lowes etc. Inexpensive, last all night, cast a nice glow but not too bright. The mounting stick fits into the winch handle socket for easy cockpit mounting or they can be zip tied to a shroud for light forward.