This item has been discontinued. We recommend the Prism Lighting Science 1000w DE Ballast 120/240v as a replacement. Power: 1000W Input 120-240V Lamp: HPS or MH Step Dimming 1 Year Warranty Integrated Fuse Protection 50foot Max Distance from Ballast to Lamp Compact and Lightweight High Frequency (30,000Hz) Power Cord 240V Included Integrated Circuit Protection Thermal Protection Ignition Failure Protection Air Cooled Output less than 300V