GoerTek Solar Lights,400 Lumens Solar Powered Motion Sensor Light,32 LED Rechargeable Waterproof Outdoor Wireless Wall/Step/Porch/Pathway/Garden/Street Security Lighting(Screwdriver Included) -1Pack PIR motion sensor, turns on light automatically when motion is detected (on "human body induction function" mode). Light sensor, automatically identify day or night, makes the light store solar power in daylight and only turns on light when in dark (the light won't be turned on in daylight, even motion is detected). Power source: 1x 5.5v 2.2w solar pannel, Built-in 2pcs 3.7v 2200mAh 18650 rechargeable batteries (included),and 1 installation tool- screw driver for free. IP65 Waterproof and heatproof design. Super bright 32 LEDs, max output 400 lumens. 4 Modes: OFF, A(continuous bright), B(human body induction + power saving), C(human body induction).