Sidewinder, the most versatile military light in the world. Twenty flashlights in one! Each LED features 4 levels of output intensities Low 5% , Medium 20% , Medium-High 50% , High 100% plus a Strobe function 100% IR Infared LED Features One switch for On-Off, dimming and mode selection functions. Pull-to-turn locking rotary color 4 selector knob with tactile indicator for easy operation with gloves Double click button to initiate strobe function from Off position Push and hold button for light output levels from Off position Powered by 2 AA batteries. Also accepts 2 AA lithium batteries, which allow extended operation, or extreme temperatures 40F 150F Mounts to MOLLE or ACH for hands-free use High-impact, super-tough nylon case drop-test verified from 30 feet Battery polarity indicators for easy replacement in the dark Unbreakable, gasket-sealed polycarbonate lens with scratch-resistant coating O-ring sealed for waterproof operation. Meets M Streamlight Sidewinder Sidewinder IR LED Coyote