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Lighting & Accessories > CFL Product Selection


ALZO Joyous Light Bulbs are Full Spectrum Lighting

Joyous Light offers 4 power options:



FIT ISSUES Small - Easy fit

fits most fixtures


fits many fixtures

May require an upgrade harp for

 table & floor fixtures

Large - Does not fit most fixtures

May require an upgrade harp for

table & floor fixtures





ALZO Full Spectrum light bulbs are sold under the registered trademark brand "Joyous Light".


Full spectrum lighting refers to light or light bulbs that cover the entire electromagnetic spectrum from low infrared to ultraviolet and above.  ALZO Joyous Light CFL (Compact Fluorescent Light) bulbs replicate sunlight and are daylight balanced with a color temperature of 5,500 Kelvin, and a CRI (Color Rendering Index) of 91.  The light produced by these bulbs is brilliant pure white and renders colors beautifully and accurately.  I addition, ALZO Joyous Light bulbs are commonly used for the treatment of SAD or Seasonal Affective Disorder, also known as winter blues.


"The general therapeutic effect of light on seasonal affective disorder (SAD) has been widely acknowledged."


ALZO Joyous Light full spectrum light bulbs are available in 4 different intensities: 15 watt, 27 watt, 45 watt and 85 watt.  All ALZO bulbs fit all common medium-base E26/E27 sockets.


These bulbs are larger than standard incandescent light bulbs, and will most likely require larger lamp harps when installing these bulbs in table lamps and floor fixtures. (See below) ALZO offers different sizes of lamp harps.


Advantages of ALZO Joyous Light bulbs:

  • Crisp bright white exceptional reading task light

  • Chase away the winter blues - Improves health and happiness

  • Perfect task work lamp that improves visual accuracy

  • The Joyous Light Long bulb life and low energy consumption save you money

  • The bulb life is about 10,000 hours*, several times more than a Tungsten light bulb (max. 2,000 hours)

  • Low energy consumption, uses about 1/4 of the energy of a Tungsten light

  • ALL ALZO Joyous Light bulbs are flicker-free

  • Produces a soft light and minimal heat which reduces cooling costs

  • All 110V bulbs have an operating voltage of 100-120 VAC 60Hz.

ALZO CFL bulbs can be purchased individually,
or as a set of 4. Case quantities also available.
For wholesale pricing call 800-582-7009



ALZO Joyous Light Full spectrum lights are commonly used to treat S.A.D., or Seasonal Affective Disorder, aka "Winter Blues". S.A.D. is a medical condition created by the lack of light that occurs during winter months, particularly in northern areas. People affected by SAD benefit from the expose to full spectrum lighting on a regular basis, and this is a proven method to help treat S.A.D. The pioneer of research in this field is Dr. Norman Rosenthal, the author of the book "Winter Blues."



ALZO Joyous Light full spectrum lighting is also used for treating skin conditions, agricultural animal housing, and for hydroponic indoor growing applications




If you are installing ALZO Full spectrum light bulbs in table or floor lamps you will most likely need a larger HARP as shown here. We sell both 9 inch and 10 inch harps that perfectly fit our 27 and 45 watt CFL light bulbs.


9 Inch HARP


10 inch HARP

NOTE*  Mounting ALZO CFL bulbs in non ventilated ceiling recessed fixtures with the bulb pointed down will shorten the life of the bulb. The bulb life rating assumes upright well ventilated installation.

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