Free Shipping Over $95
Norton Seal

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

7 Item(s)

List Grid

  1. F15T8/FS Bulb - 15W T8 Fluorescent Full Spectrum
    Price: $8.95
    1 to 29 $8.95 each
    30 and above $7.95 each

    In Stock, Qty: 25

  2. F25T8/TL950 Bulb - 25W T8 Fluorescent 5000K 98CRI
    Price: $9.45
    1 to 24 $9.45 each
    25 and above $7.95 each

    In Stock, Qty: 17

  3. CFML27VLX - 27W 4-Pin CFL, Natural Spectrum
  4. F30T12/C50/RS - 30W T12 Fluorescent 5000K, 90 CRI
    Price: $12.49
    1 to 9 $12.49 each
    10 and above $11.87 each

    In Stock, Qty: 2

  5. L36RBVLX Bulb 36W CFL Happy Skin Replacement
    Price: $24.99
    1 to 9 $24.99 each
    10 and above $23.74 each

    In Stock, Qty: 1

  6. Standard - 40W 120V T4 Spiral CFL Full Spectrum Bulb - E26 Base - White
    Price: $9.99
    1 to 4 $9.99 each
    5 to 9 $9.49 each
    10 to 19 $8.99 each
    20 and above $7.99 each

    In Stock, Qty: 30

  7. TCP 48942-65K - 42W CFL 6500K Daylight

7 Item(s)

List Grid