Satco's LED Circline lamp ideal for upgrading traditional fluorescent lighting to more energy efficient lighting in shallow, round ceiling and wall mounted fixtures. CCT selectable, choose from warm 3000K, neutral 4000K, or choose 6500K to bring the daylight inside. Designed with versatility in mind, these circline lamps are dual mode for use with ballast or in ballast bypass configurations and are range voltage ready for use in 120V to 277V applications. Refresh kitchens, halls and bedrooms in residential, multifamily and hospitality settings.