The high-performance Ducks Unlimited ProTac 2.0 Headlamp produces 2,000 lumens without sacrificing run time. Powered by the SL-B50 battery pack that charges inside or outside of the light using a USB-C cord. FeaturesUses 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/Medium/Low 2) High Only 3) Low/HighHigh: 2,000 lumens; 14,500 candela; 241m beam; runs 2.25 hoursMedium: 650 lumens; 4,200 candela; 130m beam; runs 4.5 hoursLow: 110 lumens; 750 candela; 55m beam; runs 25 hoursIP64-rated; dust-tight and water-resistant to 2 meters; 2-meter impact resistance tested6000 series machined aircraft aluminum with Type II MIL-Spec anodized finish92 in (12.5 cm)48 oz (297g) with one (1) SL-B50 battery packIncludes (1) SL-B50 battery pack, co-branded Ducks Unlimited elastic head strap, green filter, & USB-C cordGame Spotter green filter preserves night vision with maximum light cov...