Lower LED housing is constructed using die cast aluminum with an Integrated heat sink high-flow design for maximum cooling and clear tempered safety glass lens fully sealed IP 65 Rated. Constant current electronic drivers multi voltage meets UL 1310 / UL48 Class 2 with a built-in over-temperature protection. Phillips Lumileds light emitting diodes (LED) 80 CRI with 4000k as a standard and 5000k optional.