Astrid Oyster comes in four different sizes, with the 60w featuring smart capabilities and the XL80W being remote control. The Astrid 18W & 30W ceiling light can easily complement any home due to its clean edge design, and contrast trim. The special opaline diffuser provides a very even light. Output colour temperature can be controlled internally by a slide switch to select warm, natural or cool white. 18W oyster is non-dimmable and the 30W fixture is triac dimmable. The ASTRID 60W SMART LED ceiling light can easily complement any home due to its clean edge design, and contrast trim. The special opaline diffuser has a twinkle finish giving a subtle starlight affect. Pair with Google Home and Amazon Alexa Via an app (Tuya), the ceiling light can be operated quickly and conveniently via smartphone and you have the option to dim the ceiling lamp as well as adjust its light colour. The Astrid XL 80W LED ceiling light can easily complement any home due its OVERSIZE clean edge design, and contrast trim. The special opaline diffuser has a twinkle finish giving a subtle starlight affect. Included is a RF remote control, offering you the option to dim the ceiling lamp as well as adjust its light colour. Dimensions (D)= Diameter (P)= Projection 18W= Fixture: 33cm (D) 6.50cm (P) 6.50cm (H) 0.53kgs, Canopy: 25.50 (D) 1.50 (P), Diffuser: 33cm (D) 6cm (H) 30W= Fixture: 43cm (D) 8.5cm (P), Canopy: 36cm (D) 1.5cm (P), Diffuser: 43cm (D) 60W= Fixture: 43cm (D) 8.50cm (P), Canopy: 36cm (D) 1.50cm (P), Diffuser: 43cm (D) 80W= Fixtture: 80cm (D) 6.50cm (P)