Description: High quality oxidation treatment heat sink ensures a better heat dissipation Each one will be done functional test. High 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 Specification: Power Supply: 5V-24V Function and Use: control hot bed, print head heating. Material:PCB Size:88x67x30mm Usage: 1. Connect Power to power source, please note the anode and cathode. 2. Connect Hotbed to heated wire , please note the anode and cathode. 3. Connect digital control signal to Gnd,D8. 4. Connect the control signal of Ramps1.4 or MKS MOSFET to -Bed+ 5. Choose one signal group to connect. Package Includes: 2 Piece Control Module Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.