This 75 watt Blacklite Bulb fits into any standard fixture! Great purple color. Use for Halloween, parties, or poster art. For more black light effect please see our selection of fluorescent fixtures or bulbs as these 75 watt bulbs do not give off very good effect. 130v for extended life. These bulbs burn very hot and can cause burns. Please consider this when purchasing. 1,000 Average Life Hours.