PWM Driver Module with Optocoupler Isolation, MOSFET Driver Board, Wide Voltage Range

This electronic device is a PWM driver module control board designed for DC load control, combining optocoupler isolation and a MOSFET power stage in a compact layout. Works as a speed controller board for regulating engine speed or adjusting lamp brightness through PWM input, giving flexible control for different DC applications. Equipped with green screw terminal blocks and clear DC+, DC-, PWM, GND, OUT+, and OUT- markings to simplify connection and wiring setup. Supports a PWM input of 3 to 20 V, a DC output range of 3.7 to 27 V, output current up to 10 A, and PWM frequency from 0 to 20 kHz. Measures about 36.7 x 22.7 x 15.5 mm and weighs about 9.6 g, making this engine speed controller easy to fit into space-limited projects or a lamp dimmer board setup.