From Ener-J this solar LED wall light uses an adopted poly-crystalline silicone solar panel to charge with a photoelectric conversion rate of up to 90%. With absolutely no wiring required this light is easy to install - saving you on installation costs. As this product runs solely on solar energy it is also energy saving and free to run. The light will automatically switch on when motion is detected and will stay on for an additional 10 seconds after the motion stops. This product is IP64 rated making it both waterproof and dustproof. It is fully charged in 6-8 hours meaning it suitable for year round use. The sensing distance for this product is 5 metres.