Add a touch of glamor to any room with Globe Electric's Crystalina Designer 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. Globe Electric's bulbs have a tungsten filament, which is used to reproduce the single hairpin loop of a vintage design. Position it within a clear shade or exposed socket to enjoy its shape and ambient glow. This Edison-inspired bulb is a Steampunk favorite with its glowing cage-shaped filament surrounding a central glass support. Crafted to preserve the look of early 20th-century lighting, Globe Electric's Incandescent Designer Crystalina 40W clear 120V medium base bulb is a great way to brighten up a room.