This Fresnel light uses 3200° Kelvin high output bulbs. Although rated at 250 watts, the efficiency of the bulb and fixture allows it to put out as much light as a 1000 watt fixture. The bulbs (available separately) run very coolly, and are "hot-restrike," which means they may be powered on, immediately after they've been switched off.
When fitted with a 250 watt bulb, this fixture will provide a beam of 269 footcandles 4.2 feet in diameter from a distance of 15 feet @ full spot. It will throw a beam of 32 footcandles 26 feet in diameter, at full flood from the same distance.