A19 LED Light Bulb, NATIONALMATER A19 6W LED Filament Bulb [Dimmable] [600 Lumens] [E26 Medium Base] [Warm White 2700K] [60W Incandescent Replacement] LED Bulbs - UL Listed LED Candelabra Bulb: True instant on at full brightness without delay Extremely Long Life: Average 25,000 hours life with 2 year warranty over 90% on electricity bill of lighting Eco-friendly LED Lighting : Clear glass with high transmittance,mercury-free, no flicker and no UV, great choice for healthy life Soft Warm White Light: Light pattern same as incandescent bulbs, and provide 360 degree beam angle Please Note: This A19 led filament bulb is not compatible with some dimmer switch, please using Recommend Dimmer: LUTRON DVCL-153P; LUTRON DVELV-300P