... board with dimming rang 0%-100% thru a potentiometer knob, a tact switch or a DC0-10V ... special requirements. LED can be dimmed with a potentiometer knob, a tact switch or a DC0-10V ... LED driver board, linearly dimming 0%-100% thru a potentiometer - Wide input voltage 3.6-36VDC (3-26VAC ... 1500mA,2000mA,3000mA true constant current output- External potentiometer linearly dimming 0%-100% or with a PWM ...