5W LED MR16 bulb replaces a conventional 20-30W halogen bulb. Uses high power 5W COB LED chip. 100% standard fitting with a single source of LED light which eliminates multi-shadow effect caused by most other high power LED MR16 bulbs. Standard form and fit to a halogen bulb. Stylish hi-tech design with ample heat dissipation heatsink. Available in Neutral White (4000K) and Warm White (3000K). Not to be used with dimmers.