It stays cool and saves your control board from melting.
The included wire and terminal connectors are a nice touch. This module generally rests on top of the control box or next to the control board.
Features:
Color: Black
Size: 6 x 5 x 3.1cm / 2.36 x 1.97 x 1.22″
Mounting holes: 3.2mm diameter for M3 screws.
Max Current: 25A (Enhance heat dissipation) safe for prolonged times. ensure active cooling of the heatsink.
This module is based on power MOSFET and will allow PID control of the heated bed (DC DC Relays usually do not allow this)

Note:
This module under the premise of normal cooling found at I (Max) = 25A stable work situation the process of using the current not exceed 25A.

Packing Included:
2 x Heated Bed Power Expansion Module
2 x Connection cable for input signal

2x Cable for hot bed
2x Cable for power
MOSFET APPLICATION:This high power module is a general add on heated bed power expansion module for 3D printer.After Sales Quality Guarantee:All of our mosfets past quality inspection before shipment Anyone receives a defective one please contact us we guarantee to ship the new replacement.A GOOD REPLACEMENT:This is a great creative part is what you need if your heated bed has stopped working due to MOSFET failure.GOOD PROTECTION: 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. Manufacturer: Simmper; Model: ; MPN: OP 3DPHBP K; Part Number: OP 3DPHBP K; UPC: ; Color: ; Brand: SIMPZIA; Department: ; Size: 2 Pack; Warranty: ; Label: Simmper;