The Impact FDN Lamp, Frosted (500W, 120V) is a double-ended 500W, 120V bulb used for photography, video, and stage applications.
For photography, video and stage applications

Code: FDN

Application: Photography, video and stage applications

Watts: 500

Volts: 120

Color Temperature: 3200°K

Average Life Hours: 400

Approx. Lumens: 12,800

Base Type: R7s

Filament Type: C-8

Length: 4.7" (11.9 cm)