The  Beacon 2000 is the most popular primary light offered by Dive Lantern.  With a powerful 2000 lumens, a 90-minute runtime and external magnetic charging it’s got all the bases covered.  It has three output levels, so the runtime can be extended to be used for a double dive by dropping it down to 1000 lumens for some periods of time. It is also still compact enough to be clipped off to a BCD or placed in a pocket.