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PAR38 Flood & Spot Bulbs

PAR38 bulbs are the large reflector bulbs used in outdoor flood and security light fixtures.

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PAR38 bulbs are the large reflector bulbs used in outdoor flood and security light fixtures.

  • Size. PAR38 is 4.75 in across with a standard E26 base.
  • Beam. Flood versions spread light at around 40 degrees; spot versions throw a narrower beam further.
  • Weather. Bulbs in open, exposed sockets need a wet-location rating; damp-rated bulbs are for covered fixtures.
  • Built-in sensors. Some models include a motion sensor or a dusk-to-dawn photocell, which avoids rewiring the fixture.

Related: outdoor and landscape lighting.

Base and shape reference: light bulb base types chart. All bulbs: LED light bulbs.