By being exposed to sunlight for around 6-8 hours during the day, it can convert up to 17 percent of the sunlight into electrical energy and make your night shine. It's easy to install this solar powered wall light, you can use included screws to attach it to the wall without the hassle of wires or stick it into the ground. These light auto-on at night and auto-off at daytime. 2 modes: high mode and low mode. Waterproof and heat-resistant design allows you to work well in terrible winter or burn summer. This solar light can work in high brightness for about 12 hours after charging. The battery is fully charged within 8 hours in strong direct sunlight. Specification: Solar collector: 5V or 2W Brightness: 250LM Product Material: ABS Charging time: 5-6 hours Lighting Time: More than 12hrs Inner Box Size: 195 x 150 x 100MM 2 modes: high light mode and low light mode Battery: 18500 lithium battery 3.7V 2200mAh Waterproof class: IP65 Package Weight: 0.45kg or 1pcs Two brightness modes Low light mode High Light Mode Attention: A.Keep solar panel clean so the charge is quick. Remove the clear cover over the solar panel and give at least 8 hours of sun to charge it. B.Avoid leaves or dust shutter, it will effect the quality of charging. C.10 a.m to 2 p.m is the best time of charging for solar.D. The light is waterproof, but does not prevent water-soaking, avoid being easily installed in the place of the water dust. E. Be careful when installing, you need to pound the stake into the ground then attach the light. Don't put too much pressure on the light itself. If the ground is too hard, don't twist or hammer it with force. Try to soften the soil with water and then put in the soil. F. Direct sunlight to the solar panels, ensure continued charging. G. Moving obstructions, buildings, plants from sunlight. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.