CFL emergency light convert to LED light @tryproject

Описание: Old CFL light convert to LED light

Using components ;
9v transfarmer , IN4007 bridge rectifier , 7805 regulator , battery charging board , 3.7v 4A battery , switch , 0.5 ohm R , 100 ohm R , 1K R , BD139 T ,
1KVR , 4v LED chip , multi core wire

Circuit diagram download....
https://drive.google.com/file/d/1CiIB...

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   / @ohmelectronic2392  

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