Mag-tac Led Rechargeable FlashlightThe flashlight provides momentary, constant on operation, high, power saving, and a strobe output modes. While the high output mode delivers 533 lumens for 2. 5 hours, the power saving mode delivers less light but extends operating time to 4. 0 hours. To activate the flashlight and switch between the modes, use the tailcap pushbutton. The Quick Click switching allows changing between output mode.