Philips GU10 LED spot light bulbs provide 380 lumens of bright, crisp white, dimmable light at a 35-degree beam angle equivalent to 35-watt halogens at 1/5 of the energy consumption. Ideal for track lighting, these bulbs have retrofit GU10 bi-pin bases that work with Halogen lamps. Not for use with Philips HUE products. Perfect for accent and ambient lighting in home, hospitality and retail spaces, these lights offer a crisp, uniform beam and excellent color rendering to highlight and showcase artwork and product displays, as well as for general directional lighting in hallways, stairwells, and alcoves. Philips LED dimming is flicker-free, silent, and tested work with more dimmer switches than any other LED on the market. The light dims smoothly from 3000-Kelvin down to a glow with greater clarity than halogen light bulbs. Safe for the environment, LEDs don't contain any mercury. These LEDs turn on instantly with a high intensity, 35-degree beam that replaces halogen bulbs in decorative and track lighting fixtures. LEDs last 10X longer than halogen lights saving you the hassle and cost of frequent bulb changes. Each bulb in this pack of three Philips GU10 LEDs has an expected lifespan of 25, 000 hours—that's over 10 years based on usage rates of 3 hours per day. At 4 watts, these bulb uses 1/5 the energy of 35-watt equivalent halogen bulbs to save money and serve the environment. These bulbs are CRI90 and Title 20 compliant.