This Nanolux Super DE 1000W grow light ballast is a top-of-the-line product that ensures optimal plant growth. With a voltage range of 220-240V, this white ballast is compatible with HSP and features double-ended capabilities, dimming functionality, and switchable multi-wattage options between HPS and MH. Designed in California Made in China, this ballast is perfect for hydroponics and other indoor gardening uses. Trust in Nanolux for high-quality and reliable products.