Usually solar lamps consist of a lamp with a 6 Volt or 12 Volt rechargeablebattery and a 6V or 12V bulb. The solar lamp is charged by a solar panelwhich produces electricity on exposure to sunlight and charges the 6V or12V rechargeable battery during the day time. At night, the chargedbattery operates a 6V or 12V bulb in the lamp, producing light.In this invention called the "Portable Jaffna Solar Lamp", a 15 watt solarpanel, on exposure to sunlight, produces electricity and electricallycharges a completely sealed, maintenance-free, rechargeable, 12 Volt17 Ampere Hour Lead acid battery (battery capacity can range from 17to 20 Ampere Hours). But unlike in other models of solar lamps and 12Vlights, here, the 12 Volt current is fed to a standard 350 watt inverter (theinverter may range in capacity from 250 to 350 watts) which produces 110Volt current from the 12Volt current. The 110 Volt current is now fed to a110 Volt 23 watt Compact Fluorescent bulb to produce light. The very low(watt) energy consumed by this particular type of bulb makes it possibleto have an excellent portable lamp with a very high light output of 1580lumens, giving light for 5 to b hours in remote areas, on camping trips or inemergencies. Instead of using a solar panel to charge the "solar lamp",one could also use the cigarette lighter socket of an automobile or other12V source. The Portable Jaffna Solar Lamp is so designed that onexposure of the 15 watt solar panel to about 8-10 hours of sunlight, thelamp can provide portable light for about 5 to 6 hours at night. A chargecontroller may be used to connect the solar panel to the lamp wherenecessary (according to the size of the solar panel used).
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