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2. 9 Easy-to-Use Gel Nail Kits for a Long-Lasting Manicure - AOL

   www.aol.com/lifestyle/8-easy-gel-nail-kits...

   Salon Gel Polish Manicure Starter Kit. The Sally Hansen Salon Pro Gel Starter Kit is ideal for any beginner. It comes with a small UV light, base and top coats, and a shade of your choosing.

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. FYI, This Holographic Gel Nail Polish Lasts For Over Two Weeks

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   The best at-home gel nail polishes and kits in 2024 give professional, salon-level results. They're tested to be long-lasting and top-rated per rave reviewers.

5. Spectral power distribution - Wikipedia

   en.wikipedia.org/wiki/Spectral_power_distribution

   Mathematically, for the spectral power distribution of a radiant exitance or irradiance one may write: =where M(λ) is the spectral irradiance (or exitance) of the light (SI units: W/m 2 = kg·m −1 ·s −3); Φ is the radiant flux of the source (SI unit: watt, W); A is the area over which the radiant flux is integrated (SI unit: square meter, m 2); and λ is the wavelength (SI unit: meter, m).

6. Luminous efficacy - Wikipedia

   en.wikipedia.org/wiki/Luminous_efficacy

   Not all wavelengths of light are equally visible, or equally effective at stimulating human vision, due to the spectral sensitivity of the human eye; radiation in the infrared and ultraviolet parts of the spectrum is useless for illumination. The luminous efficacy of a source is the product of how well it converts energy to electromagnetic ...

7. Luminance - Wikipedia

   en.wikipedia.org/wiki/Luminance

   A luminance meter is a device used in photometry that can measure the luminance in a particular direction and with a particular solid angle. The simplest devices measure the luminance in a single direction while imaging luminance meters measure luminance in a way similar to the way a digital camera records color images.