Energy Saving: 4W equivalent to 40W incandescent bulb, save more than 90% energy, greatly reduce your electricity bill. Long Lifespan: LED filament bulb provides 25,000 hours lifespan, which allows frequent bulb replacement. No Flicker - Dimmable LED Bulbs - Well Protect Your Eyes - Excellent Performance, Warm White, Mercury-Free, No UV & IR, No Glare 2700K Edison Filament Bulb elegant and beautiful in appearance, brightness and color, perfectly creating a neutral, healthy and comfortable atmosphere for home, eliminating eye fatigue caused by conventional lamp. Wide Use: 4W bulb used for chandeliers, wall sconces, restaurant ceiling lights, ornamental fixtures, commercial string lights, light strands decorative or for any decorative application that accepts bulb types.