Automatic/ Manual Activation; Manual Deactivation; Boasts LED Light Creating Super Bright Flash Visible For Over 3 Miles; LED Flashlight; 56 Hours Operational Life; 2 AA Lithium Battery; 2.2 Inch Width x 1.2 Inch Depth x 4.4 Inch Height; Waterproof Up To 10 Meter; SOLAS/ USCG. MED/ IMO LSA/ CE Certified; With Lashing Loops/ Velcro Strap/ 2 AA Lithium Batteries; Bulk