Bulbrite 50/150 3-Way Incandescent Standard A21, Medium Base, Soft White Get the perfect light with the A21 E26 Medium Screw 50/100/150 watt 120 volt Incandescent light bulb. Box contains 1 bulb. Dimmable: Yes, Color Temperature: 2700K, Warm White Average hours: 1200, Beam Spread: 360, CRI: 100, Lumens: 580/ 1640/ 2220, MOD: 2.625, MOL: 5.00