Product Features: Digital push button control, with three (3) complimentary key caps provided to suit most switch plates Combined with the SAL rippleSHIELD downlights Ecogem or Unifit series, the rippleSHIELD dimmer eliminates nuisance ripple induced flicker between 750-1050Hz once and for all. Smooth dimming performance to 1.0% of light output PIXIE connectivity is achieved via the PIXIE / PIXIE PLUS app or paired secondary device. Refer installation instructions for load compatibility chart. Need more info......slide to the FAQ's below Dimmer Type - SFI Trailing edge SDD400SFI ONLY Technical Details: Operation Voltage: 240V Wattage: 250W Dimmable: Yes IP Rating: IP20 Usage: Indoor Dimensions: Width: 24 mm Height: 42 mm Length: 24 mm Brand & Design: Brand: SAL SKU: SDD400SFI/BP Collection: Pixie Colour: Silver Warranty: 2-year replacement warranty This fitting must be installed by a licensed electrician.