The high-performance ProTac 2.0 produces 2000 lumens without sacrificing run time. Powered by the new SL-B50 battery pack that charges inside or outside of the light using a USB-C cord. - Uses one (1) Streamlight SL-B50 protected Li-Ion USB-rechargeable battery pack (included) - Features TEN-TAP programming- Choice of three user selectable programs: - 1) high/strobe/low 2) high only 3) low/medium/high - High: 2000 lumens; 262 m beam; runs 2.5 hours - Medium: 570 lumens; 142 m beam; runs 4.5 hours - Low: 100 lumens; 60 m beam; runs 25 hours - Strobe for signaling or disorienting: runs 4 hours and 25 minutes - IP67-rated; dust-tight and waterproof to 2 meters; 2-meter impact resistance tested - 6000 series machined aircraft aluminum with Type II MIL-Spec anodized finish - Anti-roll head prevents the light from rolling away when placed on a flat surface - 6.10 in (15.5 cm) - 8.25 oz (234 g) with one (1) SL-B50 battery pack - Includes USB-C cord removable pocket clip and nylon holster - Available in black - Limited lifetime warranty - Product Specifications - High Lumens: 2000 - Run Time on High: 2.50 hours - Run Time on Low: 25.00 hours - Beam Distance: 262 meters - Max Candela: 17300 - Battery Type: Streamlight SL-B50 Protected Li-Ion USB Rechargeable Battery Pack - Battery Quantity: 1 - Length: 6.10 inches (15.49 centimeters) - Weight: 8.25 ounces (233.88 grams) - Color: Black