The Hortux Eye Ultra Ace 1000W conversion is an ( High Pressure Sodium ) lamp that operates on a Metal Halide Ballast.
Hortilux Ultra Ace 1000 is completely lead free and has a mogul base. The clear glass universal bulb will function in both the vertical and horizontal positions and lasts about 24,000 hours of life at 2100K. Emits 117,000 lumens. Use the Hortilux Ultra Ace 1000 in a 1000-watt metal halide ballast