Designed for use in 120-Volt fixtures only, the Feit Electric 40-watt T4 Bright White Halogen Light Bulb is a reliable replacement for traditional 2-pin G9 base bulbs. Our BPQ40/G9/2/HDRP bulb produces a 3000K Bright White glow while using 40 watts, ideal for accent lighting, display lighting, decorative fixtures, and chandeliers. The 400-lumen bulb is fully dimmable and lasts up to 2,000 hours. The estimated annual energy cost is only $4.82/year (based on 3 hours per day of use). Choose a dependable Feit Electric bulb for all your residential or commercial lighting needs.