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Halco 104042 R40FL500/HG R40 Swimming Pool Bulb 500W 110 120V

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This is a Hayward OEM Bulb Replacement which is identical to the bulbs shipping in new Hayward fixtures today.  Also used in Pentair Lighting Fixtures
  • Bulb replacement
  • Fits hayward underwater lights models sp0580, sp0580s, sp0584sl30
  • 500-watt, 120-volt
  • Shape: R40
  • Average Life: 2000 hours
  • Color Temperature (Kelvin): 3000
  • Lamp Base: Medium

Direct Replacement for the following part numbers

Hayward SPX0504Z4

Pentair 79102100Z

Pentair 79102100