Boasting up to 18,000 candela (peak beam intensity) and 180 lumens measured system output, the C4 Power Stinger LED and Stinger DS LED flashlights from Streamlight nearly double the brightness of the earlier models with the next advance in LED technology. Both models are constructed of machined 6000-series aircraft aluminum and a non-slip rubberized comfort grip with anti-roll rubber ring. Both provide high brightness for up to 1.75 hours of continuous run-time, up to 3.5 continuous hours at medium brightness and up to 6.75 continuous hours at low brightness.