The LL-504BC2E-B4-2BC part is an energy-saving, energy star certified light from Lucky Light. It is a recessed LED downlight with a 4-inch aperture, designed for recessed can fixtures. The light has an integrated driver, built-in heat sink, diffuser lens, and dimmable wattage. It is compatible with 120V and 277V AC voltage, and is suitable for dry and damp locations. The life expectancy of the light is rated at 25,000 hours and is covered by a 5-year warranty.