This is a 120V AC led flood light bulb. It is 2 1/2 inches in diameter and 3 1/4 inches long. It uses three 2W high power Cree leds to project an extremely bright wide beam of light. The unbreakable body is made of aluminum alloy. The bulb has an expected life of 50,000 hours. Perfect for accent lighting and lighting artwork, collections or other displays.