These Dimmable LED Drivers can dim constant current LED lights using a 0-10V or 1-10V signal. It is best practice to choose a driver with PWM output. This negates the need to closely match the load with the capacity of the LED driver to achieve the full dimming range. PWM output also allows different size drivers with varying loads to be dimmed by one dimmer mech. D1-10 Dimmer Mech