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Full Spectrum Bulbs

The light bulbs in this category produce daylight-similar illumination that has a strong blue wavelength color temperature and a high color rendering index. We also offer another category of light bulbs that simulate daylight, "neodymium" incandescent bulbs. These bulbs have a coating that filters out yellow wavelength light leaving primarily blue dominant illumination.

What is "full spectrum" light?

There are perceived differences in the "quality" of light produced by electric light bulbs. The term "full spectrum light "is used to highlight a couple of these differences. However, the term does not have a precise technical definition. "Full spectrum" electric light is commonly understood to be light that is similar to "daylight" in two ways. One, the light is perceived to have the bluish white appearance and brightness values of daylight and, two, the light has strong color rendering capabilities accross the visible spectrum. The fluorescent light bulbs Topbulb offers in this category have both of these characteristics.

Daylight includes all wavelengths in the visible spectrum, it represents "full color" or the "full spectrum."

Full Spectrum Wavelength

What is Seasonal Affective Disorder?

For some people, the onset of fewer hours of daylight means dealing with seasonal affective disorder (SAD) a form of depression. After years of research and some initial skepticism, it is now widely recognized that SAD is a medical condition affecting about 10% of the population in northern latitudes (about 2% in a place like Florida). There are many theories about the causes of SAD. One is related to the chemical melatonin that regulates sleep. Melatonin is produced by the body when there is an absence of light and helps induce sleep. Melatonin can be suppressed by light. A fluorescent light box is designed to help, assuming a person sits in front of it for at least 30 minutes each morning. Blue wavelength light is particularly important. Any fluorescent, metal halide or LED light bulb with a color temperature of 5000K or higher will have a large blue light component. Topbulb carries many bulbs that provide both quality illumination and 5000K or higher color temperature. A good place to start is with light bulbs in this category. Read more about Seasonal Affective Disorder

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  1. Eiko F8T5/D - 8W T5 Fluorescent 6500K- Daylight
  2. 13W CFL 2-Pin 6500K Daylight
  3. Eiko SP13/65K - 13W CFL - 60W Equal - 6500K - Daylight
  4. Eiko FC8T9/D - 22W Circline Fluorescent - 4 Pin - 6500K - Daylight
    Price: $4.99
    1 to 19 $4.99 each
    20 to 59 $4.89 each
    60 and above $4.74 each

    In Stock

  5. Eiko DT36/65/RS - 36W CFL - Daylight - Happylite Replacement
  6. Eiko FML-18/65 - 18W CFL - 2 Pin - 6500K
    Price: $6.99
    1 to 9 $6.99 each
    10 and above $6.79 each

    In Stock

  7. Sylvania - 25W T8 Fluorescent - Full Spectrum - 5000K - CRI 90
    Price: $7.35
    1 to 29 $7.35 each
    30 to 89 $7.20 each
    90 and above $6.98 each

    In Stock

  8. F15T8/FS - 15W T8 Fluorescent - 5700K - Daylight
  9. Standard - 15W CFL - 60W Equal - 6500K- Daylight
    Price: $7.99
    1 to 49 $7.99 each
    50 to 149 $7.83 each
    150 and above $7.59 each

    In Stock

  10. Standard - 32W CFL - 120W Equal - 6500K - Daylight
    Price: $8.76
    1 to 49 $8.76 each
    50 to 149 $8.58 each
    150 and above $8.32 each

    In Stock

  11. Bulbrite CFML27VLX - 27W CFL - Daylight Spectrum - 4 Pin
    Price: $9.89
    1 to 9 $9.89 each
    10 to 29 $9.69 each
    30 and above $9.39 each

    In Stock

  12. Standard - 9.5W LED - 60W Equal - 5000K
    Price: $9.95
    1 to 5 $9.95 each
    6 to 17 $9.75 each
    18 and above $9.45 each

    In Stock

  13. TCP - 18W CFL - 75W Equal - 6500K Very Cool Daylight-White Light
  14. Sylvania 21868 - 14W T8 Fluorescent, 92 CRI, 5000K
  15. Standard - 40W CFL - 150W Equal - 6500K Very Cool Daylight-White Light
    Price: $10.20
    1 to 5 $10.20 each
    6 to 17 $10.00 each
    18 and above $9.69 each

    In Stock

  16. TCP - 42W CFL - 150W Equal - 6500K Very Cool Daylight-White Light
  17. Bulbrite - 23W CFL - R40 - Flood - 5000K Very White Light
    Price: $11.98
    1 to 5 $11.98 each
    6 to 17 $11.74 each
    18 and above $11.38 each

    In Stock

  18. F30T12/C50/RS - 30W T12 Fluorescent 5000K, 90 CRI
  19. Standard F10T8/DAY - 10W T8 Fluorescent - 13" - 6000K - Daylight
  20. Sylvania FO32/865/XP/ECO - 32W T8 Fluorescent - 6500K - Daylight
    Price: $14.99
    1 to 29 $14.99 each
    30 to 89 $14.69 each
    90 and above $14.24 each

    In Stock

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