LED lights without power supply use gravity to generate electricity

If there is no chance to see it, some people may not realize that there are still 1.1 billion people who have no access to electricity. This means that at night, they cannot provide light through the light bulb. Ever since, these families can only rely on burning at night to get the light. Of course, most of these families need to rely on kerosene for burning. In addition to being expensive, burning kerosene is accompanied by environmental pollution, which can lead to very serious health problems.

Now, London-based designers Jim Reeves and Martin Reddiford have developed a lighting solution specifically for families in developing countries. This solution is cheap, unlike traditional power outlets and expensive solar power. The LED lamp, called GravityLight, does not require a charging power supply at all, and it means no cost.

This GravityLight is equipped with several pulleys and a well-designed powertrain. At the same time, it is equipped with a nostalgic weight wheel to generate electricity by gravity. The entire power generation process of GravityLight is such that the weights are referred to the upper air and then converted into electricity by the power gained. It can be slowly lowered, and the energy of illuminating for 30 minutes. Since there is no electricity, the initial investment is almost zero and no garbage is generated.

At the same time, this GravityLight can even charge other devices. Devices that require recharge can be connected to an interface on the GravityLight front panel. It is even possible to adjust the brightness of the GravityLight bulb to suit the user's needs, thus extending the use time.

It is reported that the cost of this GravityLight bulb is less than 5 US dollars (about 31 yuan). Undoubtedly, once the GravityLight bulb is officially launched, its low price and simple operation will definitely attract many consumers.

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