The industry's most proven high power retrofit system from 8,000 to 46,000 lumens. The DM and DMZ High Power Retrofit Cartridges are the industry's highest quality, most proven, and most dependable retrofit solution for streetlights, parking lots, tunnels, high bays and any 250 Watt to 1000 Watt equivalent. Designed, built, and supported in Alpharetta, GA.