Many appliance bulbs are sold as 40‑watt equivalents; other common equivalents include 25 W and 15 W. Some LED appliance bulbs draw about 4.5 watts while replacing a 40 W incandescent.
Lifespans vary widely in listings — roughly from about 0.5 years up to around 13.7 years. LED appliance bulbs are generally shown at the longer end of that range, while some listings indicate much shorter lifespans.
Many appliance bulbs list warm color temperatures around 2700 K or 2500 K. Some product listings do not specify a color temperature, so availability can vary.
Product listings commonly include ratings for wet locations, damp locations, and enclosed fixtures, indicating suitability for different appliance environments.
Listings show a range of CRI values — some incandescent bulbs report very high CRIs (99–100) while some LED options list lower CRI values such as 80.
Some listings explicitly state the bulbs are intended for refrigerators, ovens and similar appliances and describe designs meant to withstand the higher or more extreme temperatures found in those environments.