ANYCUBIC 3D Printer Heating Controller MKS MOSFET for Heatbed Extruder MOS Module Each one has done functional test Superior performance of MOSFET (Max 280A) Extra large heat sink , the maximum current can be up to 30A or more Can use hot bed output signal of Ramp1.4 and MKS series to control Can use digital signal of 5-24v to control