BIG BLUE AL1200- Illuminate the underwater world at depths as great as 328' with Bigblue's AL1200NP-II Narrow Beam Dive Light, offered here in blue camo and featuring an XML white LED with outputs of 110, 275, 550, and 1200 lumens. Power is provided by an 18650 rechargeable lithium-ion battery, which gives the light a runtime of 2-20 hours, depending on the brightness setting