These are a custom sized heater, designed to for our Ender 6 bed.
The heaters are rated 24V and 350 watts, so no having to wire mains voltage on your printer. Either an single larger power supply, or a second smaller 24V power supply to handle the hotend and motors, will be needed
Power supply 360watts X 24VDC
Bed heater 280 watts X 24VDC
Hotend 30 watts
Power for steppers and controls- 50 watts