These light bulbs are built with an attractive tube filament design.The filaments are attached to another pipe inside the tube that glows and emits from the Filament Bulb, adding a warm glow to any vintage, contemporary or modern decor and preserving the look, feel and style of early 1900’s light bulb. Suitable for Lighting Metal Lamp Guard Pendant String Lights and Vintage Lamp Holders, Industrial Wire Iron Bird Cage pendant lighting, wall sconces, indoor or outdoor home or commercial decoration, kitchen, living room, bedroom, bar, coffee shop, restaurant, etc.