Some people incorrectly use the term “nanometer” when talking about UV gel manicures and enhancements.
It is not the nanometers that cure UV-cured products. They are simply a unit of measurement, equal to one billionth of a meter, used to describe the wavelength of light. It is these specific wavelengths that are important in curing the product.
Exploring the spectrum: the range of wavelengths that UV nail lamps emit
Nail lamps don’t just emit a single wavelength. In fact, they emit different wavelengths. For example, a 405 nm lamp emits wavelengths ranging from 420 to 390 nanometers (nm), with 405 nm being the center of this range. Similarly, a 365 nm lamp emits wavelengths in the range 380 to 350 nm, centered at 365 nm.
Beyond Wavelength: The Critical Role of Intensity in Successful UV Curing
It is important to note that wavelength range is not the only factor that will cure a nail product. Light intensity is equally important, in fact very important for proper curing. Cheaper lamps often have lower intensity, meaning the product will not cure properly. Both the intensity and wavelength range must be correct for proper curing.
Consider how the sun tans your skin differently in winter and summer. The ultraviolet rays from the sun are the same, but their intensity is lower during the winter. Therefore, strength is very important.
Understand the real measure of nail lamp effectiveness
Some companies selling cheap lamps may try to deceive users by focusing on wattage rather than intensity. However, wattage only indicates how much electricity the lamp uses, not the intensity of the UV light. UV intensity is measured in units called mW/cm2 rather than watts.
