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8:01
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10 months ago
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Emergency Light
0:55
Emergency Light
Nov 19, 2015
circuitdigest.com
How to Make Portable Emergency Light Using 3.7V Battery and 220V LED Bulb This DIY project explains how to make a portable emergency light using a single 3.7V lithium battery and a 220V LED bulb. It is a practical and low-cost solution for power cuts, especially in areas where electricity supply is unstable. The circuit works on a simple inverter principle, converting low-voltage DC from the battery into high-voltage AC required to glow a standard 220V LED bulb. Because of its simple design, thi
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