Round ceiling light RAY made of aluminium The discreet, round-shaped RAY ceiling light - used individually or in groups - is the ideal choice for illuminating modern living and business areas. Das light from the deep-set GU10 bulb (not included) is emitted directly downwards. A solitary luminaire can be used to create spotlit Akzent, while several Rays can be arranged in groups or in a row to adequately illuminate larger areas.