Olight S1 Copper Baton Cree Xm-L2 LED 500 Lumens Cuprum Limited Edition Variable-Output Side-Switch LED Flashlight (S1-cu Bare Body) Cree XM-L2 LED. Maximum light output up to 500 lumens 3 standard modes: 8 lumens, 80 lumens and 500 lumens.2 special modes: 0.5 lumen moonlight mode and a 10Hz strobe mode Built-in timer function that allows you to set a 3 or 9 minutes timeframe before the light shuts itself off automatically Reverse polarity protection to prevent improper battery installation Waterproof IPX8