？ Solar lamps are devices that utilize renewable solar energy in order to provide lighting for people living in areas without electricity. These lamps are a cost-effective and efficient solution for many developing countries that have limited access to electricity. Solar lamps are powered by photovoltaic panels, which capture the sunlight and convert it into useable energy in the form of light. This energy is then stored in batteries, which can be recharged during the day and used at night to provide lighting. This eliminates the need for electricity, as the lighting is powered entirely by the sun. Solar lamps have been used in many countries around the world, providing clean and reliable lighting to millions of people without access to electricity. They can be used to light streets, pathways, and homes in rural areas, and are much cheaper than traditional forms of lighting. They are also easy to maintain and do not emit any dangerous pollutants like many other forms of energy. Solar lamps are an important part of ensuring that all people have access to safe and reliable lighting. They are a cost-effective and environmentally friendly solution to providing lighting to rural areas, and are transforming the lives of people around the world.