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  2. UV-B lamps - Wikipedia

    en.wikipedia.org/wiki/UV-B_lamps

    UV-B lamps are lamps that emit a spectrum of ultraviolet light with wavelengths ranging from 290–320 nanometers. This spectrum is also commonly called the biological spectrum due to the human body's sensitivity to light of such a wavelength. [1] UV-B light does not tan the skin very much, compared to the UV-A lamps that are used in tanning beds.

  3. The 12 Best UV Lamps for Nails to Dry Your Polish in Minutes

    www.aol.com/13-best-uv-lamps-nails-184500799.html

    UV LED Nail Lamp. Featuring a near-perfect rating on Amazon and over 49,000 customer reviews, this best-selling nail lamp uses a built-in sensor and adjustable timer to cut down on drying time.

  4. Ultraviolet - Wikipedia

    en.wikipedia.org/wiki/Ultraviolet

    Halogen lamps with fused quartz envelopes are used as inexpensive UV light sources in the near UV range, from 400 to 300 nm, in some scientific instruments. Due to its black-body spectrum a filament light bulb is a very inefficient ultraviolet source, emitting only a fraction of a percent of its energy as UV, as explained by the black body ...

  5. Indoor tanning - Wikipedia

    en.wikipedia.org/wiki/Indoor_tanning

    Typical F71T12 71-inch, 100-watt, bi-pin tanning lamp. Ultraviolet radiation (UVR) is part of the electromagnetic spectrum, just beyond visible light.Ultraviolet wavelengths are 100 to 400 nanometres (nm, billionths of a metre) and are divided into three bands: A, B and C. UVA wavelengths are the longest, 315 to 400 nm; UVB are 280 to 315 nm, and UVC wavelengths are the shortest, 100 to 280 nm.

  6. Maps show which states could see northern lights this weekend

    www.aol.com/maps-show-states-could-see-184107321...

    The center recommends viewing the northern lights between 10 p.m. and 2 a.m. local time. According to the center, the best times of the year to see the aurora borealis are around the spring and ...

  7. Health effects of sunlight exposure - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_sunlight...

    The first map at right shows levels of UVB radiation in June 2008, expressed in Vitamin D Equivalents. [26] UV map (Vitamin D Equivalents) Using satellite data, measurements from the European Space Agency produce similar maps expressed in units of the widely followed UV Index, for locations around the world. [27]

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