Electric power obtained by conventional methods requires a substantial amount of fossil fuels. Solar energy is comparatively a newer and multifaceted concept in energy acquisition. Solar energy is limitless and could be an uncomplicated, inexpensive, and beneficial method to save rapidly exhausting natural resources. It also offers an economical alternative to conventional lighting systems. Solar energy is stored by using solar panels. This is achieved by charging durable batteries and discharge of this electrical energy is controlled by sophisticated charge regulators, when batteries get fully charged. This makes possible solar outdoor lighting to work even on cloudy or rainy days. In fact, solar lights are able to last up to fifteen hours on a fully charged set of batteries.
Earlier solar outdoor lighting models were making use of incandescent bulbs that used to burn out faster without generating enough light. Recent models use LED (Light Emitting Diode) light bulbs, and nickel-cadmium batteries. An advantage of these batteries is that they utilize less electricity and last longer. Moreover, solar outdoor lighting is comparatively cheaper and maintenance free than conventional electricity system. In addition, solar lightings are self-programmed and work individually. If one stops working, other lights are not affected.
Solar lighting may not need any wiring at all, as it is powered totally by sunlight. It should be made sure that each light gets a good amount of direct sunlight in the day, for proper functioning at night. Solar panels need to be cleaned with water or according to manufacturer’s direction if they get dirty.
Solar outdoor lights of varying shapes and sizes can be used for decoration purposes in gardens. They can also be placed in shrubs or as pole lamps for brightening up small roads, home lawns, and commercial establishments. Light emitted by solar lighting is not as bright as other forms of outdoor lighting.
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