The 600-lumen PolyTac® X flashlight, built for durability and a sure grip, is available two ways: as a complete rechargeable system that includes our new Streamlight SL-B26® protected Li-Ion USB rechargeable battery pack with an integrated micro-USB charge port, or with two CR123A lithium batteries. Multi-fuel – Uses one (1) SL-B26 battery pack or two (2) CR123A lithium batteries Rechargeable system includes SL-B26 battery pack and USB cord Non-rechargeable system includes two CR123A lithium batteries TEN-TAP® programming allows the choice of three programs: 1) high/strobe/low 2) high only 3) low/medium/high High: 600 lumens; 205m beam; runs 2.75 hours (CR123A); runs 3.5 hours (SL-B26) Medium: 260 lumens; 135m beam; runs 5.5 hours (CR123A); runs 5.75 hours (SL-B26) Low: 35 lumens; 50m beam; runs 34 hours (CR123A); runs 36 hours (SL-B26) Strobe: runs 5.5 hours (CR123A); runs 8 hours (SL-B26) Removable, multi-position pocket clip High-impact, super-tough nylon polymer with “rocky stipple” texture for a sure grip IPX7 waterproof to 1m for 30 minutes; 3m impact resistance tested Length: 5.46 in (13.87 cm); 4.34 oz (123 g) Available in black, coyote, and yellow Limited lifetime warranty High Lumens 600 Run Time on High 3.50 hours Run Time on Low 36.00 hours Beam Distance 205 meters Max Candela 11,485 Battery Type Streamlight SL-B26 Protected Li-Ion USB Rechargeable Battery Pack, CR123A Lithium Battery Quantity 1 - 2 Length 5.46 inches (13.87 centimeters) Weight 4.40 ounces (124.74 grams) - 4.90 ounces (138.91 grams) Colors Coyote, Yellow, Black