Bulbrite 75A/BL 75-Watt Incandescent Standard A19, Medium Base, Black Light [4 Pack] Get the perfect light with the A19 E26 Medium Screw 75 watt 120 volt Incandescent light bulb. Box contains 1 bulb. Dimmable: Yes, Black Light Average hours: 1500, Beam Spread: 360, MOD: 2.375, MOL: 4.25