Bulbrite 715503 - 3 Watt Halogen Light Bulb - T3.25 - Wedge Base - Xenon - Clear - 20,000 Life Hours - 23 Lumens - 12 Volt T-3 1/4 bulb with a Wedge base Gives a warm white light Estimated life of 18.5 years based on 3 hours use per day