Narrow spectrum non filtered 590nm true amber LEDs; White/Amber Separately Controlled Circuits; ETL listed for Wet Locations; Channel Inset Door Frame; Suitable for ISO 5-9 Cleanspaces; Suitable for 209E Class 100-100,000 cleanspaces; IP55 Rated; Robotically seam welded housing; Made in the USA by a Family Owned US Corporation; This KURTZON product is illuminated by BIOS to provide healthy, lowenergy lighting that promotes improved sleep, better health and well-being