The super bright 3500-lumen ProTac HL® 5-X flashlight is available in two configurations: rechargeable with two of our Streamlight SL-B26® protected Li-Ion USB rechargeable battery packs or non-rechargeable with four CR123A lithium batteries. – Multi-fuel: Uses (2) Streamlight SL-B26® protected Li-Ion USB rechargeable battery packs; also accepts (4) CR123A lithium batteries – Features TEN-TAP® programming – Choice of three user-selectable programs: – 1) high/strobe/low 2) high only 3) low/medium/high – High (SL-B26): 3500 lumens; 452m beam; runs 1.25 hours – High (CR123A): 2500 lumens; 385m beam; runs 1.5 hours – Medium: 1000 lumens; 237m beam; runs 2.5 hours (CR123A); runs 3 hours (SL-B26) – Low: 250 lumens; 120m beam; runs 10.5 hours (CR123A); runs 11.5 hours (SL-B26) – Strobe for signaling or disorienting: runs 1.5 hours (CR123A); runs 1.25 hours (SL-B26) – IPX7 waterproof to 1 meter for 30 minutes; 1 meter impact resistance tested – Durable anodized aluminum construction – Anti-roll head prevents the light from rolling away when placed on a flat surface – Rubber sleeve provides thermal insulation and a sure grip – Length: 9.53 in (23.65 cm) – 1 lb 3.4 oz (550g) with (2) SL-B26 battery packs; 1lb 2.4 oz (522g) with (4) CR123A batteries – Limited lifetime warranty – High Lumens 3500 – Run Time on High 1.25 hours – Run Time on Low 11.50 hours – Beam Distance 452 meters – Max Candela 51000 – Battery Type SL-B26 Rechargeable Battery Pack CR123A Lithium – Battery Quantity 2-4 – Length 9.53 inches (24.21 centimeters) – Weight 1 pounds 2.40 ounces (521.63 grams) 1 pounds 3.40 ounces (549.98 grams) – Colors Black