Bright, durable and virtually indestructible, the 36-inch-tall Wobblelight is a tough, self-righting work light that withstands severe abuse from workers, vehicles, and debris--as well as from being dropped. The 400-watt metal halide light is great for commercial construction, heavy industry, and large indoor and outdoor areas. Shock absorber protects bulb from strikes and jarring. Internal ventilation system keeps light cool enough to touch. No setup--just plug it in. Can be used individually or strung in series. U.S.A. Bulb Type: metal halide. Bulb Life: 15,000 to 20,000 hours. Bulbs (quantity): 1. Watts: 400. Amps: 3-4. Light Output (lumens): 40,000. Lighting Diameter Range: 78 feet to 110 feet.