The Solis Tek STK-1000 1000W Dimmable MH/HPS Digital Ballast is a high-quality grow light ballast designed for use with both metal halide and high-pressure sodium lights. With the ability to dim the output, this digital ballast allows for precise control over the lighting intensity, making it ideal for optimizing growth in a variety of indoor gardening setups. Compatible with both 120 and 240-volt systems, this ballast offers versatility and reliability for all your hydroponic lighting needs. ++++++++++++ USED TESTED++++±++++++++++++++
eBay