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Full Spectrum Bulbs

The fluorescent light bulbs in this category all have broad spectral power wavelength distributions necessary to be accurately called "full spectrum". We also offer daylight simulating "neodymium" incandescent bulbs.

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 - 13W CFL - 60W Equal - 6500K Very Cool White Light - Daylight
  4. Sylvania - 25W T8 Fluorescent - Full Spectrum - 5000K - CRI 90
  5. Eiko FML-18/65 | 18W CFL 6500K 1080 Lumens
  6. 15W CFL - 60W Equal - 6500K Very Cool Daylight-White Light
  7. Energetic - 9W LED - 60W Equal - 5000K
  8. 32W CFL - 120W Equal - 6500K Very Cool Daylight-White Light
  9. F15T8/FS Bulb - 15W T8 Fluorescent Full Spectrum
  10. Standard - 9.5W LED - 60W Equal - 5000K
  11. Bulbrite 65R40FL/N - 65W R40 Incandescent - Flood - Daylight
  12. TCP - 18W CFL - 75W Equal - 6500K Very Cool Daylight-White Light
  13. Standard - 40W CFL - 150W Equal - 6500K Very Cool Daylight-White Light
  14. TCP - 42W CFL - 150W Equal - 6500K Very Cool Daylight-White Light
  15. Bulbrite - 23W CFL - R40 - Flood - 5000K Very White Light
  16. F30T12/C50/RS - 30W T12 Fluorescent 5000K, 90 CRI
  17. CFML27VLX - 27W CFL - Natural Spectrum - 4 Pin
  18. F10T8/D - 10W T8 Fluorescent - 6000K - Daylight
  19. Megalight - 85W CFL - 350W Equal - 6500K Very Cool Daylight-White Light
  20. TCP - 18W A21 LED - 100W Equal - 5000K - Dimmable

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