Specification: Material: Aluminum Design, LED Power: 25w, Solar Panel: 8w, Storage capacity: 5000mAh, Battery Voltage: 3.2v, Working time: 15hrs-20Hrs, Charging time:6-8hrs, Protection Grade: IP67, Instructions: 1, Install the light on the wall or any vertical surface, 2, Place the panel north-facing (20-45 degrees) on a sunny surface, 3, Connect the solar panel to your light, tighten the waterproof connection, 4, Press the Auto button on the remote (facing to the light) to set the on/off function, you can also set the brightness, and hours 3hrs, 6hrs and 8hrs.