Bulbrite KX40FR/DC 40W KX-2000 Krypton/Xenon T3 Frost Bulb, DC Bayonet Base Bright white light of a halogen Fully dimmable without performance loss No UV hazard Low wattages in line voltage without need for transformer Energy efficient and long life(3,000 hrs) For a longer lasting and more energy efficient LED option, please see Bulbrite item 861541