Because the transformer and power switch are integrated on the PCB. Users should not touch the bare metal part of the power switch, the bottom of the switch, the bottom pin of the transformer, and the 220V wiring port with their hands to avoid the risk of electric shock. This is a relatively basic production knowledge! ! ! The 103 high-voltage capacitor on the power switch is also live.
253*57*165.5
Beijing Green Cube 15W transformer for transformer, power supply 15VX2
The following is a display diagram of the complete machine