…it indicates the product is a Kenall luminaire that uses blended white + 405nm indigo light, and full 405nm indigo light, via a lighting control system, to safely and continuously kill 94% of harmful viruses, including SARS-CoV2 and Influenza-A, as well as bacteria, including Staph, such as MRSA. A one-for-one replacement makes it easy to install, and with automatic switching to indigo-only mode there's no need to worry about meeting local energy codes.