Solar Powered Motion Activated No Batteries Needed Peel & Stick Mounting Durable and Weatherproof Specification: Solar panel power: 5.5V, 0.55W. Lithium battery: 3.7V-600mAh. LED: high brightness 4x 2835LED SMD. Material: new ABS plastic. Working mode: infrared human induction. Charging time:> 8 hours. Working time: full of electricity, according to light 50 times per night, can work continuously for 4 days. Intelligent machine power: <0.05mAh. Packing size: 125mm * 90mm * 50mm. Sensing distance: 3-5 meters. Suggest installion height: 2-4 meters Note: Due to lighting effects, monitor's brightness , contrast settings etc, there could be some slight differences in the color tone of the pictures and the actual item. Please allow 1-2mm differs due to manual measurement.