UVB: The "Sunburn" Wave (280nm - 315nm)
UVB is the medium-wavelength band of ultraviolet light. It’s the stuff in natural sunlight that causes your skin to burn, tan, or freckle after a long day outside.
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What it does: UVB penetrates the top layers of the skin. In small doses, it triggers your body to produce Vitamin D.
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Common uses: You will usually see UVB lamps used in reptile enclosures (to keep lizards and turtles healthy) or in specialized medical clinics to treat skin conditions like psoriasis.
UVC: The "Germ-Killer" Wave (100nm - 280nm)
UVC is shortwave ultraviolet light, and it is incredibly powerful. Naturally, the earth’s ozone layer completely blocks it, so zero natural UVC reaches the ground.
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What it does: Because it has so much energy, UVC destroys the DNA and RNA of microorganisms like bacteria, viruses, and mold, making it impossible for them to multiply.
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Common uses: It is heavily used for air purification, water treatment, and sanitizing surfaces. The most efficient and chemically proven wavelength for true disinfection is 254nm.
Safety Note: Because UVC is so powerful at destroying cellular structures, you must never look directly at the beam or shine it on bare skin. Always wear UV-rated polycarbonate safety glasses when handling true UVC equipment.
