The PowerSun UV is a self-ballasted mercury vapor lamp which emits UVA, UVB, and heat all in one lamp! Fits into a standard ceramic socket (No ballast needed). The bulb projects UVB up to several feet from the lamps surface and is ideal for large terrariums or bird aviaries.

Features include quality nickel-plated threads to prevent corrosion, and a full one year warranty from the manufacturer!