Bulbrite 683503 - 4PK - 50W - PAR20 - Medium Base - 120V - 2,500Hrs - Flood - Dimmable - Blue - Halogen Light Bulbs 50 Watt, 120 Volt, 100 CRI, 2,500 Average Rated Life Hours, Medium (E26) Base Dimmable Internal thermal paint prevents scratching and fading of color 4 - Halogen PAR20 Blue Light Bulb