Solar energy drives almost all activities on Planet earth. Solar energy is better for the environment than traditional forms of energy.It is one of the most freely available and most useful energy. With the shortage of fossil fuels and power, the world is desperately in need of an alternative power source.
Solar energy can be used in many different ways. It can be used for electricity production and heating of water through photovoltaic cells.It can also be used to heat swimming pools,power cars ,calculators and other small appliances. Using solar energy is the definite answer to many of the woes of the world. Solar lights and solar heaters are now being used as a substitute for electrical lights and heaters. Different kinds of light fixtures are now being run on solar energy.
Solar lights are mainly preferred for outdoor lighting than indoor. Solar garden lights are being widely used to light up the outdoors. The main advantage of solar lights besides the fact that it is freely available is that the outdoor lighting is free on numerous cables running around in the garden. There if no fear of electrocution and no worry of emission of pollutants. Solar energy does not require the burning of fossil fuels which would release carbon dioxide into the atmosphere. Solar garden light is a great way of conserving energy as solar energy is renewable unlike electricity.
Along with the eco-friendliness of solar lights, another benefit of solar garden lights is that they can be easily relocated as and when required due to its light weight. They can also be easily tucked in around the plants and bushes in the garden. Besides garden lights, solar energy can be used for several other light fixtures such as floor lamps, table lamps, spot lights, flood lights etc.
The working of solar garden lights does not require any electrical wiring. Solar garden lights run on Dc electricity generated by sunlight. Some call solar light as mini-satellites as they store their own power during the day in order to release it in the night. Solar garden lights have built in photo sensors which enable them to automatically turn off during the day, and store the energy to be used during the night when there is no sunshine.
There are a few disadvantages with solar garden lights. One of the main weakness is that it cannot be used during rainy seasons or other periods when there is absence of adequate sunlight. Another problem is that these lights normally have a small area of solar cells with relatively low battery back-up. This leads to emission of light of moderate brightness for a short period of time. Scientists are working on overcoming this issue and the invention of latest technology has made way for improvements.
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