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ALZO 85W Joyous Light® Full Spectrum CFL Light Bulb 5500K, 4250 Lumens, 120V, Pack of 4

  • The Joyous Light® is a crisp, bright white light ideal for reading and tasks that require visual accuracy
  • CFL bulb has natural daylight balanced color temperature of 5500K
  • Chases away winter blues, alleviates the effects of Seasonal Affective Disorder S.A.D.
  • This is a large bulb that might not fit standard household lamps; see diagram above
  • Energy-saving, uses about 1/4 of the energy of a comparable Tungsten bulb

Case of four (4) 85W full spectrum Joyous Light® light bulbs that create daylight-balanced lighting, are energy saving, and have a long life of circa 6,000 hours with 4250 Lumens output, 120V; low energy consumption, used for starting plant growth. These are compact fluorescent light (CFL) bulbs. Fits all medium-base E27/E26 sockets. Dimensions: Length: 10.5 inches; Diameter: 3.9 inches; Length socket base to top of ballast: 4.5 inches; Diameter of socket: 1 inch. Important: ALZO CFL bulb life is based on the bulb in an open-air upright orientation. When bulbs are installed in fixtures that lack adequate ventilation, the life of the bulb will be reduced. If an ALZO CFL bulb is installed in an overhead recessed light fixture with the bulb glass below the base, the life of the bulb will be greatly reduced.

Is a photography light bulb different from a general use bulb?

  • Generates very little heat
  • All ALZO Joyous light bulbs are flicker-free
  • About 6,000 hours bulb life
Wattage (Energy Used): 85 watt
Lumens (Brightness): 4250
Color Temperature (Appearance): 5500K
Voltage: 117
UV-A @1m: 0.004mw/cm2
UV-B @1m: * >0.000uw/cm2; *Not within the range of our meter. Note: UV-A from sunlight midday = 5-10mw/cm2
Frame Rate: ALZO CFL and LED light bulbs can be used at frame rates up to 1000 fps without any flicker; they are true continuous light sources.
Bulb Life:
(based on 3 hrs./day)
5.5 yrs
Estimated Yearly Energy Cost:
(based on 3 hrs./day and $0.11/kWh; cost depends on rates and use)
Dimensions: Length: 10.5 inches; diameter: 3.9 inches
Disposal: Contains Mercury / For more on clean up and safe disposal, visit epa.gov/cfl