Dimmer for Drivers or Ballasts. Supports unidirectional and broadcasting communication. Control via conventional push-button, with or without memory function. Short press: Turn on/off light. Long press: Dimming up/down. Dimming speed adjustable by rotary knob. Address Setting: Address value = Left rotary switch value x 10 + Right rotary switch value. Example: Left switch 5, Right switch 4 = Address value 54. Unicast mode: Address values 0-63 correspond to addresses 00-63. Group mode: Address values 70-85 correspond to groupings 0-15. Broadcast mode: Left rotary switch value is 9. PUSH Dimming Speed Setting: Adjust speed via rotary knob position. Memory Function Setting: Short press SET button to switch memory function. Without memory: LED indicator is red. PUSH dimming then power on again, light returns to maximum brightness. With memory: LED indicator is green. PUSH dimming then power on again, light restores the last brightness. Factory default: Without memory. Push-button Function: Short press: Turn on/off light. Long press: Dimming up/down. Safety Instructions: Do not install with power applied to device. Do not expose the device to moisture. Product Details: Colour: White Material: Plastic Package Contents: 1 x LED Dimmer Appearance may vary slightly due to different product batches. Only the items listed are included; other products are not included. Note: Light reflection and different displays may cause slight color variation from the image. Measurement allowance is +/- 1-3cm.