LED S14 sign bulbs are also used for patio Christmas decorations. The glass ones offer a really clean, bright look at a premium price, and the plastic ones are more economical, and offer excellent dimming on the dimmers we recommend as companion parts. They are about 1.75 inches in diameter at the widest. They have E26 Medium bases, same as most of the lights in your house. They can be used for outdoor patio light strings, ideal for landscape lighting for cafes, patios, gazebos and wedding tents. We offer commercial-grade light strings with medium base in-line or suspended sockets that allow complete freedom in designing your outdoor landscape lighting.