Detachable Design with 2 Easy Installation Options One-piece Installation The one-piece installation option reduces drilling when used for front door lighting with direct sunlight and no shading. Separated Installation 16.4ft extension cord included, you can set the solar panel at a sun-friendly location, and put the lamp indoors or under shades. Previous page Next page 1 Shed 2 Barn 3 Porch 4 Waterproof Kindly note: Please connect the solar panel to the LED lamp panel, then turn on the switch on the back of the solar panel before testing or installation.The actual working efficiency of solar powered lights is affected by the intensity of the sunlight. That means the weather, season, and installation location will affect the working time and the required charging time of the lights. This is normal for all solar lights.If you find the solar outdoor light works shorter at night or suddenly stops working after a short period of use, a possible cause is insufficient sunlight exposure, especially from September to February when sunlight intensity and daytime decrease. Solution: Relocate the solar panel to face the south for maximum sunlight exposure.