Rated IP65; Suitable for ISO 3-9 Cleanspaces; Suitable for 209E class 100-100,000 Cleanspaces; ETL listed for Wet Locations; One piece Inset Doorframe; Robotically seam welded housing; 0-10v 1 percent Dimming Standard for most configurations; Narrow Spectrum 540nm Green LEDs; White / Green Separately Controlled Circuits; Recessed Housing suitable for Tbar Grid AND Hardlid Installations; B.A.A. Compliant & Made in the USA by a Family Owned US Corporation