6V-30V 10A  PWM DC Motor Speed Control

Features:

DC Motor Speed Controller allows controlling speed of a DC
motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle
fully adjustable from 5%-100%. The motor speed controller can provide a
continuous current of 10A to your DC motor or other DC load.
The circuit includes two MOS tubes and the heat radiating effect is
better. So it allows the more current.

Main technical parameters:

Input supply voltage: 6V-30VDC
The maximum output power: 300W
The maximum continuous output current :10A;
The overload and short circuit protecting current is 20A
PWM frequency: 21kHz
Duty Cycle adjustable: 5%-100%
 

Specifications: 

Item size:60*50*28mm
Two mounting holes of 3.2 mm each
Net weight: 65g

Important Notes
An appropriately rated fuse (rated a little higher than the maximum
current you expect to draw) is recommended to ensure safe
operation.
The controller is NOT reverse-polarity protected and will be
damaged if connect the supply voltage with wrong polarity. Double
check all connections before applying power and always turn off the
power supply before making any wiring changes.

Package include:
 1 x 6V-30V Speed Control Switch