Most 40W-equivalent appliance bulbs use the standard Edison medium screw base (E26), which fits common household fixtures and appliances.
Light output in the listings generally ranges from about 300 to 450 lumens. Common color temperatures include warm soft white (~2700K), daylight (~5000K), and variable/multicolor options available for smart bulbs.
Many 40W-equivalent bulbs are dimmable (including full-range dimming). Some LED options are smart bulbs with smartphone app control and compatibility with voice assistants and smart-home platforms.
CRI values in the results range from about 80 up to 99. Common LED listings show CRI around 90–95, while an incandescent listing in the results is listed at CRI 99.
Common shapes include A15 and A19, with some smart bulbs listed as ST19. Overall lengths in the listings range from about 2.17 inches up to 5.55 inches.
Some 40W-equivalent bulbs are marketed specifically for appliances, while many LED options are general-purpose. Review notes and listings indicate these bulbs are commonly used in refrigerators, ovens, stoves, and range hoods.
Some listings show UL certification while others do not list certifications; several bulbs note suitability for wet or damp locations depending on the specific product.