The frequency adjustable LED Light Dimmer uses a knob to dim your 12-24VDC constant voltage LED lighting products from 0-100% and dip switches to change the PWM frequency for flicker free applications. The impressive 30 amp output allows for dimming control of larger circuits without the need of additional accessories, when set to higher PWM frequencies the maximum load decreases. DC input and output wires can easily be secured using the screw down connectors. The small size of this PWM dimmer makes it easy to conceal and set the lights to the brightness level you prefer. Use this dimmer for LED strip lights, LED modules, LED light Ribbon or for dimming pretty much any one color LED product with 12-24VDC constant voltage power requirements.