Philips BR20 LED light bulbs with Warm Glow Effect provide 450 lumens of soft white light, equivalent to 45-Watt incandescents with 80% less energy use. These bulbs fit standard medium base (E26) fixtures with the look and feel of a classic bulb. Warm Glow dimming offers flicker-free, silent dimming that works with more dimmer switches than any other LED on the market. The more you dim, the warmer the light--from XXK to XXK just like traditional incandescent light bulbs. These best-in-class, Energy Star Certified Philips LEDs provide steady, natural lighting at 1/4 of the energy of incandescents, 1/2 the energy of halogens and with 10X and 4X the lifespan respectively. Philips LEDs are mercury-free so they don't contribute to harmful hazardous waste. BR20 soft white flood light bulbs fit 4-inch recessed can light fixtures, offering relaxed soft white light that dims to a warm glow. These bulbs are not for use with Philips HUE products. This 6-pack of BR20 LEDs is expected to deliver a lifetime of up to 25,000 hours and over 20 years based on standard usage of three hours per day, saving you the cost and hassle of frequent bulb replacement.