GE bug light bulbs have a special coating makes light invisible to bugs, so they are not attracted. Designed with a unique all-weather construction, these bulbs withstand harsh weather conditions better than regular bulbs. Use GE bug light bulbs in enclosed outdoor fixtures like porch lights, post lights and carriage lights Special coating makes light invisible to bugs, so they stay awayA19 shape with medium base for use in outdoor carriage and post lightsDesigned with a unique all-weather constructionThey withstand harsh weather conditions better than regular bulbsYellow light bulbLasts 0.9 years based on 3 hours per day usage