Light output: up to 24,000 candela (peak beam intensity), 185 lumens; Medium- up to 12,000 candela (peak beam intensity), 95 lumens; Low- 6,000 candela (peak beam intensity), 50 lumens Deep dish parabolic reflector produces a long-range targeting beam w/ optimum peripheral illumination. Optimized electronics provides regulated intensity Runtime: High- up to 2 hrs.; Medium- up to 3.75 hrs.; Low- up to 7.5 hrs.; Strobe- up to 5.5 hrs. Fits existing Stinger snap in chargers; compact and mountable in any position 10 hr. steady charge, 2.5 hr. fast charge, or PiggyBack charger Serialized for positive identification Limited lifetime warranty Super tough, non conductive nylon polymer with non slip rubberized comfort grip The PolyStinger LED and PolyStinger DS LED combine C4 LED technology with rechargeablilty generating the lowest operating costs of any flashlight made! 3-cell, 3.6 Volt sub-C NiCd battery is rechargeable up to 1000 times O-ring sealed Unbreakable polycarbonate lens with scratch-resistant coating. C4 LED Technology. Shock-proof with a 50,000 hr. lifetime Multi-function On/Off push button switch designed for extremely long life; tested at 1 million actuations.