How to reduce the power of high-power heating wire by half?
1. Connect a silicon rectifier diode with a withstand voltage greater than 500V and a current greater than 50A in series. Note that the diode should be equipped with a heat sink;
2. Find another heating wire with the same specifications as the original high-power heating wire and connect it in series with the original heating wire;
3. Adopt bidirectional thyristor voltage regulation method, and display a voltmeter in the load.
