INCANDESCENT LIGHT – Incandescent bulbs provide flicker free light that are instant on at full brightness with no warm up time. Incandescent light provides 80 CRI (color rendering index) for the most true to life color appearance FULLY DIMMABLE – These bulbs are fully dimmable when attached to a fixture with a dimmer switch. Output is 90 lumens at a warm white color temperature 2600K LONG LIFE SPAN – With a long 2,500 hour life span you’ll need to replace hard to reach bulbs less often WARM WHITE LIGHT – These 15 watt traditional incandescent bulbs put out a comfortable warm white light at 2600K MERCURY FREE – These bulbs contain no mercury or other harmful chemicals making them safe for the environment. Bulb measures 3.3 inches high, 1.88 inches in diameter