In the market, You can find lots of ceiling lights 400mm wide, however really difficult to find a product in 500mm or 600mm, Runwin White and Black IP42 LED Ceiling Light Sunrise Series is a big improvement based on normal light. It can do from size 230mm To 750mm, with wattage from 18W to 70W. High Lumen efficiency and real energy saving, less power consumption but higher brightness output. Your cost of electricity bill will be lower and lower. This modern ceiling light looks elegant, clean and minimalistic and is therefore ideal for modern furnishing styles.