1. Save energy by using solar energy to charge 8-10 hrs. with power 4 watts.2. Liquid and solid protection standard; IP65 rating. Comes with light sensor and motion sensor.3. turn the switch to ON, the light will standby dim light at nighttime and auto turn to full light (320 lumens) when there’s a movement under the sensor area then auto turn back to dim light when there’s no movement. The light and sensor won't work at daytime but the solar cells still charged under sunlight.