Features: Solar-powered: charge itself during the daytime, and light up automatically in darkness. Motion sensor: automatically illuminate when motion is detected within 10-11 feet of the device in the dark with a PIR sensor. And the light will dim after 30 seconds of inactivity. Two working models: full brightness model and lower brightness model. When the motion sensor detects the movement, the lamp will double the light output. And to save the power, it dims after about 30 seconds to a lower brightness. Energy saving: no cables, no electricity cost, recharged by solar panel under sunlight. High-efficiency: efficiently transform solar energy into electrical energy by absorbing sunlight. It can continuously work 6-8 hours after fully charged with about 6 hours in sunlight. PP housing cover:water-resistant, dust-resistant. Suitable for outdoor using. Flexible installation: two installation ways, quick, easy.