null Add a touch of glamor to any room with 40W E26/Medium Incandescent Light Bulb. The pointed edges allow the filament to sparkle giving it an old-world look. Completely dimmable, you can create the perfect atmosphere anywhere you place the bulb. In the early days of electrical lighting, inventors such as Thomas Edison tested and retested as they searched for long-burning filaments. In 1890, the filament choice was carbonized cotton. Bulbs have a tungsten filament, which is used to…