Set of 2 BCA Blue Daylight 4800K photo lamps.
250-watt Photo Flood, Standard Household Edison Screw Base, Frosted, 5,000 Lumens, 4800 Degrees Kelvin, average life 3 Hours. 120 Volt.
Remember this is a 250 Watt bulb and gets very hot.
Another note. The bulb is rated for 3 hours of use. The testing is
done by turning on 10 bulbs. When the 5th one burns out leaving
5 still operating, that is the average life. Some burn out in a couple
of hours and some last over 3 hours.
California Proposition 65