The Sylvania Dulux D/E 18W CFL Compact Fluorescent 20724 4 Pin Bulbs Lot of 5 are modern, dimmable lamp bulbs that provide soft white light. These compact fluorescent bulbs have a lifespan of 12000 hours and are designed with a 4 pin connector for easy installation. Made of glass and featuring a tube shape, these energy-efficient bulbs have a wattage of 18W and are ideal for use in various lighting applications in homes and gardens. With the trusted SYLVANIA brand and fluorescent tube lighting technology, these bulbs offer reliable and long-lasting illumination.