Printing a light-emitting battery on a film is not a big deal, or printing LED lights and ultra-thin lithium batteries on a film is not too new. However, the above three were simultaneously printed on the film in order to save the 1.5 billion people who did not use the lights in the remote and poor areas where the power was not connected, and help them get the news in the dark.
Frederik Krebs came up with the idea of ​​combining solar panels and LED lights to help poor people in unpowered areas, but it is clear that the project is still in progress. If this project is successfully completed, this new combination of solar panels, LED lights and battery units will bring cheap lights to people in the poorest parts of the world, freeing them from the endless darkness of the night. Although the current combination of solar lights can last for years, their conversion efficiency is only 1%. Of course, considering that the final cost of this new type of solar LED combination lamp is only $7 per piece, this inefficient product is still full of the potential to change the lives of people on Earth, especially in poor areas.
It has also been revealed that some of the prototypes of this new combination luminaire have been tested in Zambia, an African country. As shown in the above picture, people will put the solar panels in the sun during the day, and at night they will roll the solar panels into a cone-shaped lamp. At this time, people can enjoy the night without the power. The light is bright.
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