The Zoo-Med Powersun UV 160W Flood Lamp is a self-ballasted mercury vapor lamp that emits UVA, UVB, and heat, all from a single source. It is designed to fit into a standard ceramic socket and does not require a ballast. This 160W lamp is particularly effective for large terrariums or bird aviaries, projecting UVB rays several feet from the lamp's surface. It features quality nickel-plated threads to prevent corrosion and comes with a full one-year warranty. For proper installation, it should be mounted vertically and not used with a thermostat, ensuring adequate airflow around the lamp. This product is ideal for creating a naturalistic environment that supports the health and wellbeing of various reptiles and birds.