Philips A19 Vintage filament LED light bulbs are made to be seen, with a classic shape and glowing filament that shines with 350 Lumens (40 Watt equivalent) of warm, dimmable light at a quarter of the energy use of traditional incandescent bulbs. Philips LED dimming is flicker-free, silent it is tested to work with more dimmer switches than any other LED on the market. The light dims smoothly from 2000K soft amber glow like traditional incandescent light bulbs. With a medium (E26) standard base, these decorative bulbs can be used in any standard lighting fixture both indoors and outdoors. Use these decorative bulbs exposed fixtures, hanging and pendant lamps string light fixtures where steady ambient mood lighting is desired. Best-in-class Philips LEDs turn on instantly with energy-efficient flicker-free, natural light at 1/4 of the energy of incandescent, 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. This pack of 4, A19 Vintage Filament Philips LEDs comes with a 3-Years warranty. Each bulb is expected to deliver a lifetime of up to 15,000 Hours and over 10-Years (based on 3 Hours per day), saving you the cost and hassle of frequent bulb replacement.