Dive Rite BX-1 Handheld Light LUX: 8000 with AAA batteries; 12,400 with lithium battery Beam: 8 degree Burn time: 2 hours with AAA batteries; 4 hours with lithium battery Batteries: 3 AAA or 1 18650 Lithium (see Batteries below for details) Depth rating: 492 ft. (150 m)