ACMESHINE Bright Outdoor LED Light Solar Energy Powered - Weatherproof - No Tools Required; Peel 'n Stick / Motion Sensor-Detector Activated / Dusk to Dawn Dark Sensing Auto On / Off - 2 PACK 16 Bright LED Lights with a Lifespan of 50,000hrs and a Built in Ni Battery with AAA Batteries will be Required All-in-one Solar Lamp, AAA Batteries could be Rechargeable and Replaceable, Waterproof and Heatproof Wireless Design, Easy to Follow Instructions and Installation. Bright mode is activated for 30 seconds when the PIR motion sensor detects movement within 5 meters. Solar Powered Lamp, Please put the lamp under a enough sunshhine.