You are viewing a genuine Osram 12v 4.9w LED MR16 36deg 2700k. This bulb is a 35w replacement in colour of 2700k (warm white). 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. Please see related products for compatible dimmer switches. This lamp has a maximum lumen output of 350 at full brightness. It has an average life span of 25000 hours and comes with a 3-year warranty. Osram 4058075431492 Diameters: Length 46mm - Diameter 51mm