Review on Camco 12V/15W Fluorescent Light Bulb (Model 41313) by Marley Woods

15W is so bright! We often lose energy. I have a few sealed lead acid batteries left over from the project. So I bought 2 of these 12V CFL bulbs. They screw into a regular household light fixture (but never into an existing light fixture, which of course is rated for 120VAC). So I used a cheap string basement light connected to a 12v 10 amp battery. When the power went out - Hurricane Irene, the clicking - and there was so much light we didn't have to use candles or flashlights. It stayed light for over five hours before power was restored. If you want the best ratio of usable lumens per watt hour, this is definitely the way to go for battery powered lighting.