Designed for use in 12-Volt fixtures only, the Feit Electric 20-watt T3 Bright White Halogen Light Bulb is a reliable replacement for traditional 2-pin G4 base bulbs. Our BPQ20T3/RP bulb produces a 3000K Warm White glow while using 20 watts, ideal for under cabinet lighting, wall sconces, chandeliers, accent lighting, and display lighting. The 250-lumen bulb is fully dimmable and lasts up to 2,000 hours. The estimated annual energy cost is only $2.41/year (based on 3 hours per day of use). Choose a dependable Feit Electric bulb for all your residential or commercial lighting needs.