Lifegard Aquatics Replacement Germicidal UV Sterilizer Ballast - For 25,40wBALLAST FOR 3" Diameter Germicidal UV 25, 40 Watts Ballast operated Pro Max UV R450105 and R450106 The new ballast in the black housing is: Water Resistant IP64 Rating. Suitable for Indoor or Outdoor Use and UL Listed Caution: Do not submerge in Water This Ballast has a Red and Green indicator light. Green = UV Bulb is operating fine Red = UV Bulb is off or water damage and not operational Specifications: Power output: 25W 40W Input Voltage: AC from