Yesterday, students from the middle school of Beijing Steel Institute gently shake the handle of the energy-saving small lamp. At the same time, nearly one hundred energy-saving lamps are lit at the same time. The hand is shaken for half a minute, and the light can last for one hour. In the next three years, the Ministry of Environmental Protection will invest 10 million yuan in environmental protection education for young people around the theme of “green city, low-carbon lifeâ€.
Hand-cranked energy saving lamp
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