D.light ST 100 Solar torch is an innovative solar powered flashlight which can be used as a torch or a night light. The D.light ST 100 is made up of two parts - a solar panel and a rechargeable battery. When it is dark outside, simply place the solar panel on any flat surface such as your desk or table top and let the sun do its work. As soon as the sun goes down, the battery will start charging automatically. Once fully charged, the battery will last about 3 hours. You can then switch off the solar panel and use the flashlight as a normal torch.