Features:

XY-L-1240W DC Motor Speed Controller provides variable speed capability for DC motor.
Adjustable speed range is 5%-100%.
Output Power : 0.01-2000W(max).
12V:480W(max); 24V:960W(max) ; 36V:1440W(max); 50V:2000W(max)
The use of ambient environment temperature is -20℃(-4℉) to 40℃(104℉)
Potentiometer with switch function.

Operating instruction:
Before you attempting to wire the controller, make sure power is off.
WARNING: DO NOT REVERSE POSTIVE AND NEGATIVE POWER LOADS.THIS WILL DAMAGE THE CONTROLLER. TO CHANGE MOTOR DIRECTION, INTERCHANGE THE POSITIVE AND NEGATIVE WIRES OF MOTOR.
1.Connect wires refer to the "wiring diagram" (NO.6 picture). (It is recommended to add an appropriately rated fuse inline with the positive supply.)
2. Turn on the power. The LED lights, the power is OK.
3. Adjust the potentiometer.

Package Including:
1 x DC Motor Speed Controller