A solar light uses energy from the sun to produce light. (Solar light can also refer to natural light coming from the sun.) There are inexpensive lights that you can place outside. During the day, they use solar energy to charge a battery, and at night, or when it's too dark to charge the battery, the battery runs a light. Solar street lights are street lights powered by sunlight. Solar lights use solar panels. Solar panels use sunlight as an alternative source of the energy. The solar panels are installed on the pole or the lighting structure. Solar flood lights are commonly used for security purposes. These types of lights are usually seen on the streets. These lights are sometimes seen on both sides of the road, but also on the island in the middle of the road. These lights are also used in gardens, backyard fires and around the house.