STREAMLIGHT PolyStinger DS LED -Blackwithout charger SG76810 Two switches are better than one! The Stinger DS?? LED is the only rechargeable flashlight with a fully independent dual switch. Now with C4 LED Technology. DUAL SWITCH TECHNOLOGY Ÿ?? Access any of the three variable lighting modes and strobe via the tail cap or the head-mounted switch Head switch operates independently from the tail cap switch The combination of a rechargeable battery and a 50,000 hour lifetime C4 LED results in the lowest operating cost of any flashlight made. Deep-dish parabolic reflector produces a long range targeting beam with optimal peripheral illumination to aid in navigation. Up to 18,000 candela (peak beam intensity) and up to 140 lumens measured system output Runtime: High Ÿ?? Up to 1.75 hours; Medium Ÿ?? Up to 3.5 hours; Low Ÿ?? up to 6.75 hours; Strobe Ÿ?? Up to 5.5 hours Optimized electronics provides regulated intensity Length Ÿ?? 8.85 " (22.48 cm)) 6000 series machined aircraft aluminum with non-slip rubberized comfort grip C4 LED technology, impervious to shock with a 50,000 hour lifetime 3-cell, 3.6 Volt Nickel cadmium sub-C battery is rechargeable up to 1000 times