Infrared sensing mode: keep off when no movement is detected, and light up when motion is detected; 2 Infrared sensing and dimming mode: keep light when no motion is detected, Lights up when motion is detected; 3Dimming mode: keeps the dim state all night, the infrared sensor stops working in this mode.(at least work for 20 hours) .4.Emergency mode. If necessary, it can be used for outdoor hiking and camping as emergency lighting. Long press the button for 3 seconds, will come in the emergency mode, or adjust it by remote control.