Bulbrite 292104 45R20SP2 45-Watt Incandescent R20 Reflector, Medium Base, Clear (Pack of 4) Get the perfect light with the R20 E26 Medium Screw 45 watt 120 volt Incandescent light bulb. Box contains 1 bulb. Dimmable: Yes, Color Temperature: 2700K, Warm White Average hours: 2000, Beam Spread: 15, CRI: 100, Lumens: 350, MOD: 2.5, MOL: 3.88