SureFire EDCL2-T Handhelds/Everyday Carry Light, Black, 1,200 Lumen, Pack of 1Virtually indestructible LED emitter Regulated to maximize output and runtime Two output levels 1, 200 lumen high for maximum light, 5 lumen low for extended runtime Fully press tailcap switch for high output, and slightly press tailcap switch for low; twist for constant on TIR lens produces focused beam with sufficient Surround light for peripheral vision Two way Clip permits light to be carried bezel up or down For Low Output: Press the Tailcap