Solar water heating systems include storage tanks and solar collectors. If you have a large family or use large quantities of hot water, a solar water heating system may be a cost-effective option. Solar water heaters use the sun to heat either water or a heat-transfer fluid in the collector. Heated water is then held in the storage tank ready for use, with a conventional system providing additional heating as necessary.
CFL Based Solar Street Lights consist of tubular type battery, Compact Fluorescent Lamp (CFL) with high efficiency circuitry.