However, although this could Gravity Light dijadkan zero lighting one energy / lighting alternative

If the lights - mock - maybe with a price of about 10,000 already be one. But if the lights are purchased are branded lamps would need tens of thousands. Or even hundreds of thousands if you choose a large enough wattage.
Now, what if you were offered a light and affordable once "Only" for 5 dollars (or the equivalent of 60,000 dollars to the current exchange rates), but you will be free of charge to pay a "strum" forever?
Driven by a load weighing 25 pounds that fall slowly from a height of six feet in 30 minutes. As a result of kinetic force generated by the falling load is able to make the motor inside the lamp rotates thousands of times per minute and produce light.
Martin zero lighting felt the need to find a Gravity Light, although this era called the modern zero lighting era, but in fact there are still about 1.5 billion people in the world, zero lighting especially from developing countries, which in menjalni life activities without the use of electricity at all.
However, although this could Gravity Light dijadkan zero lighting one energy / lighting alternative, but Martin's artificial lights zero lighting also have drawbacks. Although the light is much brighter than the oil lamp, the light Gravity, every half hour, the light load must be raised manually to repeat the process. How, want to try it?
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