Multi-Fuel - uses two Streamlight SL-B26™ protected Li-Ion USB rechargeable battery packs; also accepts four 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 battery packs): 3,500 lumens; 452m beam; runs 1.25 hours
High (CR123A): 2,500 lumens; 385m beam; runs 1.5 hours
Medium: 1,000 lumens; 237m beam; runs 2.5 hours (CR123A); runs 3 hours (SL-B26 battery packs)
Low: 250 lumens; 120m beam; runs 10.5 hours (CR123A); runs 11.5 hours (SL-B26 battery packs)
Strobe for signaling or disorienting: runs 1.5 hours (CR123A); runs 1.25 hours (SL-B26 battery packs)

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
9.53 in. (23.65 cm);
1 lb 3.4 oz (550g) with two SL-B26 battery packs; 1 lb 2.4 oz (522g) with four CR123A batteries
Limited lifetime warranty
RoHS compliant