Features: brand new and high quality A general add-on heated bed power expansion module for 3D printer Completely solve the hot bed power is too large and the load current issue. When using heated bed 3D printer for 12V power supply which may cause excessive current during times, with this module, it can well protect the connectors on the controller board from burning. This high power module helps your 3D printer equipped with the controller board (capable of max 15A) become even more powerful. With this add-on module to board lead the maximum current up to 25A. This module is based on power MOSFET and will allow PID control of the heated bed (DC-DC Relays usually do not allow this) Specifications: Item name: 3D Printer Hot Bed Power Expansion Board Material: PCB + Metal Color: Black Voltage: 12V/24V(Max) Current: 25A(Max) Size:Mixed Item Type: Heatbed Model Number: 3D Printer Hot Bed Power Expansion Board Application: Computer Model Number: 3D printer hot bed Power expansion card /MOS high current load module Type: Voltage Regulator Quantity: 1pc Note: Due to different production batches, the color of the connecting line will change. If you mind, please don'for t place an order! There might be little error of size for manual measurement. The colors deviation might differ due to different monitor settings, please kindly understand. Package includes: 1PC x 3D Printer Hot Bed Power Module