Use parameters: input voltage 1-100v, current 0-10a, continuous power consumption 50w maximum 75w, power tube can be best without insulation, if you add only mica sheet and thermal grease, fan is necessary, over temperature must be burn
j1 is an integrated meter interface,
j2 is a fan interface,
j3 is a 12v power supply interfac
j4 is 5-20k for external current regulating potentiometer interface
The board is connected to the ground through the integrated head interface of the j1. If you do not use the related solder joints on the back of the j5 interface, you need to short circuit the ground.