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Model-specific appliance

What light bulb does a microwave need?

Reviewed August 28, 2026
Answer

Use the lamp or LED assembly listed for the exact microwave model. Over-the-range cavity and cooktop lights can use different parts in the same appliance.

Open over-the-range microwave with cavity and cooktop lighting areas visible
Cavity and cooktop lights can be separate parts even when they belong to the same microwave.

Bases you may encounter

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

E17 intermediateOpen guide →G8 bi-pinOpen guide →Model-specific LED assembly

What to read on the old lamp and fixture

  1. Find the complete model number.
  2. Identify whether the failed light is inside the cavity or below the appliance.
  3. Match the manufacturer part, voltage, wattage and dimensions.
  4. Disconnect power before opening a lens or service cover.