Details: Hayward replacement pool lights will fit light niches from Hayward, American Products, Pac-Fab or Purex. Designed for residential or commercial applications and includes stainless steel trim ring for and E-Z lock clamp and reflector. When sizing your replacement pool light, check for the following: manufacturer's name; voltage - 120V or 12V, watts, length of cord and size. Dimensions: 10.75 inches O.D. x 7 inches deep. Specs: 500 Watt, 120 Volts, 50 foot cord.