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Outdoor multi-socket string

Patio string light bulb replacement

Reviewed August 28, 2026
Answer

Use the string manufacturer's specified base, voltage, maximum watts and outdoor rating. Decorative shape alone does not identify a safe replacement.

Outdoor patio string lights with clear decorative bulbs at dusk
Use the string's tag to match base, voltage, per-socket watts, and outdoor rating.

Bases you may encounter

These are common possibilities, not a substitute for the model documentation.

E12 C7Open guide →E17 C9Open guide →E26 S14Open guide →Integrated LED string

What to read on the old lamp and fixture

  1. Unplug the string and read its tag.
  2. Match base, supply voltage and per-socket wattage.
  3. Check whether the string uses replaceable parallel lamps or a model-specific system.
  4. Use the required outdoor/location rating.