LED light bulbs for home, MR11, 3.3 watt, Dimmable LED spotlights, GZ4 standard base, Dimension Φ35×45mm, Using 3 pcs Cree XPE LED high power LED, LED replacement bulbs, With 45 degree beam, 210 lumens, Cool white 5000k~6500k, Light output comparable to 25 watt incandescent bulb or halogen bulb, DC/AC 12v operation. Dimmability: Compatible with Triac dimmers on market such as Lutron, Leviton, Legrand, Osram,and GE etc. dimming range is from 5~100% and very stable. Housing Material: Aluminum Extrusion. These bulbs are perfect for the inside case lighting for jewelry, no heat and good lighting. Please note that all the Triac dimmers just work on AC power, Means that if this spotlight work on DC power, It is non-dimmable.