This light (AL1300NP) has been Bigblue's best-selling light for the last 5+ years and shows no signs of slowing down. It's also a trusted back-up light for tech divers. This is the perfect light for general purpose or to peer into crevices to find hidden critters! Light provides 1300 lumens in level IV at 6500°K color temperature, has a narrow 10° penetrating beam angle from an XML LED. Four power settings to reduce intensity and increase battery life. The light provides 1300 lumens (Level IV), 650 lumens (Level III) 325 lumens (Level II) and 130 lumens (level I). There is also an SOS function for emergency signaling. The lights burn times are 2-hours (level IV), 5-hours (level III), 10-hours (level II) and 20-hours (level I). Power is supplied by the rechargeable lithium-ion 18650 battery pack. A color-coded battery indicator lets you know when to recharge the battery for optimum use. Built-to-last with the housing made from anodized aluminum means rugged dependability. Lens is made from tempered optical glass and the light is depth rated to 330′ (100m). The light measures (L x Dia.) 5.5″ x 1.3″ (139.8mm x 33.2mm), weighs 5.93 oz. (168 g) with battery is -2.7 oz. (-76 g) underwater. Included with the Bigblue AL1300NP-II 1300 Lumens LED Light is a roll top dry bag, battery charger, wrist lanyard and owner's manual. The Bigblue AL1300NP-II 1300 Lumens LED Light is a great primary recreational dive light. Can be interchanged with the two other light heads with wider beam angles (LH-AL1300WP and LH-Al1300XWP). Warranty InformationThis product has a limited warranty of 12 months. Details Narrow 10° Beam Angle 4-level push-button on/off switch with battery level indicator Powered by a rechargeable 18650 lithium-ion battery Rated waterproof to 100M (300FT) Comes with a blue dry bag Tail switch version also available United States customer service from Bigblue's office in Clearwater, FL Specifications Package Weight 2 lbs Lumens 1300 B