Light-emitting diodes or LED’s are solid-state devices that convert electric energy directly into light of a single color. Because they employ “cold” light generation technology in which most of the energy is delivered in the visible spectrum, LED’s don’t waste energy in the form of non-light producing heat.

According to the Department of Energy’ website, LEDs emit nearly monochromatic light, making them highly efficient for colored light applications such as traffic lights and exit signs. However, to be used as a general light source, white light is needed. White light can be achieved with LEDs in three ways:

• Phosphor conversion, in which a phosphor is used on or near the LED to convert the colored light to white light

• RGB systems, in which light from multiple monochromatic LEDs (e.g., red, green, and blue) is mixed, resulting in white light

• A hybrid method, which uses both phosphor-converted (PC) and monochromatic LEDs.

The ability of LED technology to produce high-quality white light with unprecedented energy efficiency is the reason why Suncatcher’s scientists work so diligently to develop consistent white light to help with light therapy.

The benefit of the Suncatcher Personal Sanitzing Wand is the UVC rays destroy bacteria on hard surfaces as the wand passes over a specified area.

Ultra violet C rays are The UV range of the electromagnetic radiation spectrum extends from 10 nm to 400 nm. Depending on the wavelength and time of exposure, UV radiation may cause harm to the eyes and skin.

The UV spectrum is separated into four parts: UVA (315 nm to 400 nm), UVB (280 nm to 315 nm), UVC (200 nm to 280 nm) and UV Vacuum (100 nm to 200 nm). Decreasing wavelengths correspond with higher frequency radiation and a higher amount of energy per photon.

UVC radiation refers to wavelengths shorter than 280 nm. These wavelengths are entirely absorbed by our atmosphere and no natural UVC radiation reaches the surface of the earth.

UVC wavelengths are available to us through artificial sources, such as UVC LED’s or lamps with mercury. The intensity from point sources like UVC LEDs falls off as 1 over distance squared, and once it gets past the scattering length, it falls off exponentially. This means that 1) the further away the UVC source from a human, the lesser dose the person is exposed to, and 2) the absorption length of UVC radiation in human skin is extremely short so that almost no UVC radiation can reach the living cells in the skin; all the absorption occurs in the dead cell layers.

However, UVC rays are very effective at destroying bacterial cells. The benefit of the Suncatcher Personal Sanitzing Wand is the UVC rays are focused on hard surfaces as the wand passes over an area.