Combine classic style, modern reliability, and energy savings with Feit Electric ST19 LED 40-Watt Equivalent Warm Light (2100K) Filament LED Light Bulb. Our vintage filament bulbs are made with LED exposed filament and wrapped in an amber glass housing to deliver an elegant antique look and feel. We integrate innovative LED technology with an exposed filament, providing a natural lighting experience for those who want the benefits of LED and the look of vintage lighting. Filament LEDs will last for years and use just a fraction of the energy of an incandescent.