This is the BigBlue AL450NGP 450 Lumen 8 degree Narrow Beam Scuba Diving Light Features: Light Source Cree LED Light Output 450 lumens Casing Material Aluminum alloy, anti-corrosive anodized Power Source 3AAA batteries, alkaline or NiMH Angle Of Light Beam 8 degree narrow beam Safety Designs Double o-ring sealed Color Temperature 6500K Available Colors Black Burn Time Up to 4hrs at full lumen output Maximum Depth 100M tested Grip Handheld Weight 204g (including batteries) Bouyancy In seawater -91g (including batteries) Switching System Twisting bezel Front Glass Tempered optical glass Lanyard, Pouch and Hand Mounting Glove Included AL450N: This light is a rugged, reliable, and compact light with a powerful output. The AL450N is an upgraded version of the popular AL1X5M series - the AL450N offers 450 lumens, a 8 degree beam angle, a twisting bezel for on/off function, and a lanyard. This is a great small light option for any diver. "