As people become more aware of the damage that has been caused by the abuse of energy and the destruction of the environment, the demand for green energy grows. Solar lamps are one of the most eco-friendly forms of illumination presently available. Solar lamps are powered solely by the sun during the day and have no emissions. They don't require any fuel, such as oil, and are almost entirely maintenance free. Solar lamps are built with photovoltaic cells that absorb light energy and then in turn convert it to electrical energy. This means that they can be used in almost any environment or weather conditions and do not need an electrical connection. Because solar lamps rely on renewable energy supplied by the sun, they are cost-effective, too. Once a solar lamp has been purchased, no further costs need to be paid as the energy to power them is free. It is important to note, however, that the lifetime of a solar lamp can be reduced if it is not cleaned regularly. Solar lamps have numerous uses. For instance, with special decorative solar lamps, gardens and lawns can be illuminated during the night. Furthermore, they are often used for public illumination and in developing countries, a solar lamp is an excellent investment as it provides a reliable and safe source of lighting to those who previously lacked access to any form of electricity. As awareness of the earth's limited resources continue to grow, the demand for solar lamps is increasing. Solar lamps are affordable, practical and of course, environmentally friendly, making it the ideal lighting solution for those seeking to do their part to help protect the environment.