IP55 Rated; ETL listed for Wet Locations; Suitable for ISO 5-9 Cleanspaces; Suitable for FED Std 209E Class 100-100,000 Cleanspaces; Recessed Housing Suitable for Tbar Grid And Hardlid Installations; Channel Inset Door Frame; Robotically Seam Welded Housing; 0-10v 1 percent Dimming Comes Standard; DLC Premium Listings Available; Made in the USA by a Family Owned US Corporation; 5 Day Quick Ship For Orders Under 25 Fixtures