The fitting has a flush backplate with a polycarbonate diffuser.This diffuser is decorated with a sparkly effect that shines up when illuminated.Built inside the fitting is a 17watt LED module that has the ability to be changed from a colour temperature of 3000k warm white to 4000k cool white and then finally to a 5000k daylight, this is done by simply repeatedly pressing your existing standard on/off switch.The total light output is 1530 lumen.