Microbial Disinfection Through Smart LED Lights

The light-emitting diode (LED) is one of the most evolving technologies today. They are the most energy-efficient and commercially used product in the market. 

Almost 11 years ago, when this technology was introduced in the industry nobody had estimated its potential. LED lighting solutions have taken rapid strides in the last couple of years and have become more advanced. One such advancement this technology has done is in microbial disinfection.

As per the World Health Organization (WHO), Covid 19 can be easily spread through air. The focus of the entire world these days has been shifted to a reliable disinfectant technology.  

You will be surprised to know that there are research-backed pieces of evidence from the scientific community that shows some LED lights have the potential to kill and destroy bacteria, fungus and other harmful microorganisms. LED disinfectant technology can become a real blessing in this time of novel coronavirus. 

There are various wavelengths in UV lights: 

  1. UVA (Long Wavelength 315-400 nanometres) 
  2. UVB (Medium Wavelength 280-315 nanometres)
  3. UVC (Short Wavelength 100-280 nanometers)

UVA & UVB wavelengths are the normal wavelengths that reach us through sunlight after getting filtered by Ozone & our atmosphere. It’s the UVC wavelength which is strong enough to kill the majority of Bacteria & viruses. UVC can be produced artificially through LED lighting technology.

There are majorly two types of technology that is used in LED lights for microbial disinfection.

  1. UV-C technology: A Traditional solution

As already discussed, the ultra-violet light with a short wavelength has the capability to kill many strains of harmful microorganisms. UV-C has the strongest effect on germs and pathogens.  The UVC technology was first used in 1877, its evolution led to great advancement in water disinfection & air disinfection technologies. The UVC lighting solutions are quite successful in shredding and tearing apart the genetic material i.e. DNA and RNA of microorganisms. 

However, later it was observed that UV-C can create some serious health risks in humans and can destroy several materials like plastics, polymers, etc. One has to be very careful with the intensity and duration of exposure to UV-C lighting. 

  1. HINS 405nm technology: The 3rd Generation Solution 

Unlike UV-C technology, High Intensity Narrow Spectrum (HINS) technology is much more advanced & sophisticated.  It uses a narrow band of wavelengths focused on 405 nanometers. This technology is also called pathogen inactivation technology. As per a clinical trial that was conducted in Glasgow, Scotland, they found this lighting system to be very powerful. It can destroy and significantly inhibit the reproduction of bacterial pathogens. They are capable of killing 86% of floor bacterias. The 405 nm lighting system can provide continuous sensitization to the occupied areas of the hospitals, offices, malls, schools, etc. 

The best part of the HINS lighting system is that it is extremely safe to the human body and building materials and can be easily operated when the place is occupied. 

The sanitizing LED smart lights are definitely a way forward to a better, healthy & safer world.