Specifications Model NE555 Pulse Width Modulation Speed ControllerInput Voltage DC 4 5V 15VOutput Current Up to 3AFrequency Range 1Hz 10kHzControl Type PWM Pulse Width Modulation Dimensions 5 5cm x 4cm 2 17 x 1 57 Note This is an unassembled kit you will need to assemble and solder it Features 1 Provides precise speed control for DC motors using pulse width modulation PWM 2 Easy to assemble kit ideal for electronic production training and educational projects 3 Compact and space saving circuit board design 4 Wide application in small robotics and automation projects 5 Stable operation ensured by integrated IC components and circuit design 6 Efficient power regulation with minimal energy loss Package Includes 1 x NE555 DIY Electronic Kit