This small but handy circuit is ideal to replace a existing dimmer or switch so that a lamp or group of lamps can be dimmed also a motor with brushes can be varied in speed. To control the dimmer only a DC signal is enough an ideal tool to drive the card is the computer interface card K8000 Technical Specification - Supply voltage: 110V of 220-240V 50 or 60Hz - Can be used for: 24V AC - Max. load: 750W/220V 380W/110V 80W/24V - Continue adjustable from 0 to max. - Adjustable zero offset - DC control voltage between 0 en 10VDC (-1V +2V) - Maximum control current: 2.25mA at 12V - Optical isolated DC input - Isolated triac is used - Dimensions: 50x75mm