What level of UV light do your UV Sanitizing system produce? Holly June 21, 2018 05:24 Updated Follow Our UV sanitizing system uses a wavelength type of UV-C. Levels of UV light: UV-A - Blacklight UV : 400nm - 315nm. UV-B - Dangerous UV : 315nm - 280nm. UV-C Germicidal Ultraviolet at 254nm : 280nm - 200nm. Related articles Can I use spa chemicals in my inflateable spa ? What can I use to increase the life of my spa cover? Comments 0 comments Please sign in to leave a comment.