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Lighting
Ordinary light bulbs waste a lot of energy. That's because they work by getting hot; you get a little light and a lot of heat. Change to low-energy lamps and you will probably use about 20% of the power. That means only one fifth of the solar panels, one fifth of the batteries or 80% less spent on electricity for lighting.
Low Energy Lamps
If you're on the mains or your solar power system has a big enough inverter, then the best lamps you can use for most things are normal low energy lamps. They fit in a standard light fitting, use about one fifth of the power of a normal light bulb and should last for years.
Low Voltage Lamps
If your solar power system is small and you don't have a big inverter, then you will be better off with low voltage lamps. These range from fluorescent strip lights to modern halogen lamps, and are available from caravan and boat suppliers, amongst others.
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