The Sledge is a ruggedized, rechargeable, flood beam headlamp engineered for versatility and performance across industrial and outdoor applications. It features dual power LEDs and provides multiple modes of lighting, including a THRO mode that provides a short burst of 1,000 lumens when extra brightness is needed. Powered by the SL-B26 protected Li-Ion USB rechargeable battery pack, it can also operate on two CR123A lithium batteries. Multi-Fuel: Uses (1) Streamlight SL-B26 protected Li-Ion USB-C rechargeable battery pack or (2) CR123A lithium batteries Multi-Function Push-Button Switch Features Four Output Modes: Low, Medium, High and THRO (Temporarily Heightened Regulated Output) mode for maximum brightness Flood for Area Illumination: Low: 100 lumens; 310 cd; 35 m beam; runs 13 hours Medium: 300 lumens; 850 cd; 58 m beam; runs 9.25 hours High: 600 lumens; 1,800 cd; 85 m beam; runs 4.25 hours THRO: 1,000 lumens; 30,000 cd; 110 m beam; 60 second burst THRO Mode: Press and hold the button for 3 seconds while light is on, after 60 seconds, light reverts to prior mode Two (2) White LEDs, impervious to shock with a 50,000 hour lifetime USB-C rechargeable Li-Ion battery charges in 5 hours Tough polycarbonate thermoplastic construction with aluminum faceplate. Unbreakable polycarbonate lens Serialized for positive identification 45Adeg tilting head IPX4 water-resistant; 2 m impact resistance tested Weight w/ SL-B26: 4.6 oz (121.9 g) Limited lifetime warranty