Two numbers matter when choosing a ceiling light: the diameter in centimetres and the light output in lumens. Gosund's 30 cm models give 1600–1920 lm and suit a smaller room, while Yeelight's Arwen and Jupiter reach 45–60 cm. The letters in the name deserve attention too — on CW models you can only adjust the balance between warm and cool white, while RGB versions add colour. The Yeelight MercuryE C300 switches itself on from a presence sensor.
Find accessories for your phone
Select manufacturer and model
Two numbers matter when choosing a ceiling light: the diameter in centimetres and the light output in lumens. Gosund's 30 cm models give 1600–1920 lm and suit a smaller room, while Yeelight's Arwen and Jupiter reach 45–60 cm. The letters in the name deserve attention too — on CW models you can only adjust the balance between warm and cool white, while RGB versions add colour. The Yeelight MercuryE C300 switches itself on from a presence sensor.