CREE Q3 WC high efficiency LED (Light Emitting Diodes). Maximum output 170 lumens. Battery discharge protect mode. Anti-rolling rugged design. Impact-resistant optical window with Dual-Coating technique. Mil-spec Type III Hard Anodized finish. Waterproof to IPX-7 standard. Unique tactical switch, forward clicky. O-ring sealed for moisture Length: 140mm, Head diameter: 34, Body diameter: 25.5mm. Weight: 138g Battery: Only 18650 LI-ion
Brightness Adjusting Mode Four types output: A. High , B. Low, C. Strobe. D. Variable output.