Galaxy 902232 Digital Logic 1000W Turbo Charge Plant Growing Ballast Assemblies Galaxy digital Logic ballast feature our proprietary intelligent control interface This is displayed with a Green LED panel on the end of the ballast. Low Current, staggered ignition delay feature eliminates circuit inrush overload and protects lamp for increased lumen maintenance Internal ballast programming will protect unit in instance of open circuit, short circuit, over/under voltage or high temperature exposure This Smart interface allows control of pre-programmed timing settings, and an hour meter to Monitor the age of your lamp Thermally optimized non-air cooled aluminum housing