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#UPS transformer use #220Vto12V transformer #220V power is life-threatening Meter order link https://bit.ly/3kLxcuu This clip will introduce techniques for measuring the connection wires of transformers from old UPS. In order to get a 220V input wire and a 12V output wire so that it can be used in various forms. Learn by yourself. Please follow, like, share and press the bell. Follow the page / jek.diy Website https://jekdiy.com/https://jekdiy.com... Additional content …........................................................................... Content in the video clip How to measure the UPS transformer wire 1. Introduce the technique of observing the wires. The input side of the transformer is 220V on which side? And the output side is 12V on which side? 2. Use a multimeter to set the resistance measurement range (Ω) to measure the transformer wires to find the 220VAC input wire pair. 3. Convert the UPS transformer output coil to get the desired 12VAC output wire. To be used in various forms