Aero-Tech ULA-25 20,000 Hour 120-Watt BR-40 Indoor Flood Light 26 times the life of average bulbs saving labor & replacement costs Brass base eliminates corrosion and prevents base from sticking in socket 5 support wires to help provide long life with excellent resistance to vibration and shock Special rare Krypton gas mixture reduces heat and prolongs filament life Made in the USA