Vktech&reg; Solar Ultra Bright 360LM 40LEDs Motion Sensor Garden Security Light Bulb This product is solar-powered LED bulb. In the daytime, the solar panel converts solar energy into electrical energy and store in the built-in batteries. And in the evening, the light-control system makes it go on automatically LED: 40PCS of 5mm White LEDs It will continuously light 6-8 hours if it is charged 8 hours by the enough sunlight Make the solar panel face up for protection against rain. Keep the lamp holder away from the water It is perfect illumination widely used in the place of balconies, courtyards, gardens, shop windows, etc.