Lighting Modes Main LED: Turbo bright mode(Extremely bright): In the off state, long-press the switch to turn on, and release the switch to turn off. (Up to 400 lumens) Constant light(High-Medium-Low-Eco): Double-click to turn on, click to switch, long press to turn off, with memory function(The next time it is turned on, it will enter the mode before shutting down). Side LED: Three-click switch to turn on, single click to switch mode, long press to turn off, with memory function (After 3 minutes of constant light, the mode before shutdown is memorized) Lighting mode: White light-Flashing white light-UV light-Red light-Flashing Red Light-Red and blue flashing alternately