The lumilife 45w downlight is our brightest in the range and offers an energy efficient and longer lasting alternative to halogen and incandescent equivalents saving you up to 70 on energy use while also reducing maintenance costs it packs up to 3900 lumens of light and adopts a pmma diffuser to create an even output for wider choice its available in white and brushed nickel trims its been designed to last 40 000 hours and is free of mercury and other hazardous substances youll enjoy