Dr.Lamp A19 3W Edison Bulbs LED Filament Globe Lamp, (Equivalent 40W) 2700K Warm White E26 Medium Base,LED Edison Lights Non-dimmable CUL Listed (1 Pack) ENERGY SAVING-3W Led Filament Light replaces the standard 40w Incandescent Light. Low heat, highly efficient LED technology. Extremely low power consumption .Energy saving up to 90%. NO DELAY-360 degree beam angle, Clear glass led bulbs, LED filament bulbs turn on instantly to full brightness with no delay. LIGHT PATTERM-same as incandescent bulbs. 2700K, The bulb lights up instantly with a warm glow which looks really retro and cool. Mercury-free, no flicker and no UV. LONG LIFE-Lasts up to 50 times longer than 40W incandescent bulbs with an average life of 30000 hours. Base on 4 hrs/day, 11 /kWh, Estimated Yearly energy cost $0.48. THE BEST RECOMMEND DIMMER.Lutron-SELV-300P ,Required Wattage Less Than 300W;Lutron-TGCL-153 PR,Lutron-AYCL-153 PR,Required Wattage Less Than 150W Dr.Lamp Led filament light bulb is a light bulb that uses leds as its filaments, The bulb is clear glassvintage Edison style, Light is emitted from four LED filaments uniformly and evenly in all directions [360 degree beam angle], instead of focusing it in a specific area in the way that many LED light bulbs do. They offer up to 90% energy savings over ordinary incandescent light bulbs. For instance, if you obtain an led bulb that uses 3W it will offer the same amount of illumination of an incandescent bulb with a 40W rating Extremely low power consumption. And heat dissipation soon, after use few hours , while you touch it surface , will have little temperature or no. Long life is a distinguishing feature of these LEDs. Most bulbs are built to last for more than 30,000 hours of use. This extended lifespan is enhanced by a constant current source that ensures stability of parameters and prolongs the life of the bulb. 360 degree beam angle, Clear glass led bulbs, LED filament bulbs turn on instantly to full brightness with no delay. Light Pattern same as incandescent bulbs. 2700K, The bulb lights up instantly with a warm glow which looks really retro and cool. Mercury-free, no flicker and no UV. 3W Led Filament Light replaces the standard 40w Incandescent Light. Low heat, highly efficient LED technology. Extremely low power consumption .Energy saving up to 90%.