Zahid The product spec claims a 270 - 395 nm range. The actual effective germicidal range required is 200 - 285 nm. So it seems this product produces part of the required germicide irradiation frequencies. The question remains, does the unit provide adequate UV irradiation to be truly considered as a disinfection tool? Only time and testing will tell if the stated frequency band is produced at adequate strength to be fit for purpose!