Main Features:
u25cf Work with Anet A8 3D printer heat bed
u25cf Completely solve the issue that the power of hot bed is too large and the load current
u25cf Under the premise of normal cooling, it works stable under I ( max ) = 25A, the current must not exceed 25A in working process
u25cf General add-on heated bed power expansion module
u25cf Note: the wire's color is random

Summary:
u25cf Remove basically all outside screws for your Anet A8 control box
u25cf Take pictures of existing board wiring
u25cf Unscrew two large 12 / 14GA wires on the board labeled HOT BED
u25cf Screw these two wires into the new MOSFET board labeled HOT BED
u25cf Connect the small jumper wires ( white ) to the control board where you just remove the two wires and screw them down. Note the polarity on each board. Match ( + ) to ( + ) and ( - ) to ( - )
u25cf Find 2 x 6 - 8 inches pieces of 12 or 14 AWG wire
u25cf Run one of the 6 inches wires to the power supply ( + ), screw in. The other side to the ( + ) DC on the new MOSFET board. Repeat for the negative wire ( - ) to ( - )
u25cf Many people use velcro to secure the new board to the top of the control box.
u25cf Put everything back together
u25cf When complete, you'll see a blue light activate for signal from inside the box when the bed heater is activated by the control board