... and color distribution 5)High lumen E27 GU10 5W LED Bulb LightSpecificationParametersDimension 57.5*116MMLamp HolderE27/ GU10 optionalGun ShellPC milky white ... .It has external bright light4.It has long using lifespan, up to 20000 hours5.No merculy, No IR or UV infrared ... , offices and the home7.Easy to install Application:1)LED Bulb Lighting 2) Mall ,hotel, exhibition hall, room and counter, corridors ...