Streamlight Stinger LED Flashlight 3 Watt Super High-Flux LED Runtime: High beam: up to 1.75 continuous hrs. Medium beam: up to 3.5 continuous hrs. Low beam or strobe: Up to 6.75 continuous hrs. LED Rating: 80 Lumens typical 3-cell, 3.6 Volt sub-C Nickelcadmium battery is rechargeable up to 1000 times Multi-function On/Off push-button switch designed for extremely long life; tested at 1 million actuations Anti-roll rubber ring included Streamlight Stinger LED. The powerful, long-range, long-running, flashlight that lasts a lifetime. A combination of rechargeability and LED technology that produces the lowest operating cost of any flashlight made! The new Stinger LED, with an ultra-bright,far-reaching beam, offers multiple lighting modes, including strobe.