This is a Philips 7.5w LED 12v Dimmable MR16 24deg in a Cool White 4000k colour. This spot reflector lamp is a 35w replacement of the halogen MR16. This 12v Spot is compatible with Trailing Edge Dimmers and provides buzz free smooth dimming when used with this setup. Old traditional leading edge dimmers often used with halogen or incandescent lamps, tend to buzz or flicker in some cases but still work with this lamp. The Philips MR16 has a maximum lumen output of 520 lumens, It has an average life span of 40000 hours to give the customer extra peace of mind.