The 19" Diameter Impact 3-Lamp Fluorescent Ring Light Is A Shoot-Through Light Fixture With Three Concentric 5200K Fluorescent Lamps That Render Soft, Nearly Shadowless Illumination Which Is Cosmetically Flattering To Skin Tones In Glamour And Close-Up Work. A Fabric Diffuser Is Included For Increased Diffusion And To Mask The Lamps Reflected In The Catchlights Of The Subject's Eyes. Power Level Is Controlled By An On/Off Switch For Each Lamp. The Ring Light Has Its Own Stand Mount But Can Also Be Supported With The Included Small, Adjustable Camera Bracket Which Was Designed For Cameras With Lenses Up To 4.0" Diameter. Lamps: Fluorescent X3, (22, 28, 40 W) White Finished Tungsten Equivalent: 360 W With All Lamps On Lamp Life: 6,000 Hr Per Lamp Color Temperature: 5200K (+/- 200K) CRI: >85 Photometrics: Total: 1030 Lux @ 3.28' (1.0 M), Large Lamp: 845 Lux @ 3.28' (1.0 M), Medium Lamp: 685 Lux @ 3.28' (1.0 M), Small Lamp: 582 Lux @ 3.28' (1.0 M) Ballast: In Lamps Mounting: Light Fixture: 5/8" (16 Mm), Included Small Camera Bracket: 1/4"-20 Mount Input Voltage: 90 - 120 VAC, 50/60 Hz Fuse: 250 V, 5 A Power Cord: 9.25' (2.8 M) Dimensions: Outer Diameter: 19" (48.3 Cm), Depth: 3.5" (8.9 Cm), Lens Opening: 3.9" (100 Mm) Weight: 4.8 Lb (2.18 Kg)