Replaced my old Honeywell Unit!
I've been using UV-C lights in my HVAC systems for 18 years. The more expensive "name-brands" or the ones your home AC installers sell will break eventually. Some have proprietary connections forcing you to buy their overpriced bulbs. I have replaced 2 sets of Honeywell ballast units in 18 years and the bulbs last about a year. I leave mine running 24/7-365. No off and on cycling extends the bulb life. I've been using the BioShield for 3 months with no problems, except (as others have pointed out) the installation template is Wrong. The light on this unit that indicates the bulb is working is a great feature. It allows me to look from a distance and see that the bulbs are still good. I will update if any issues arise.
Rating: 5 stars