If you're looking for an energy-saving, UVB-5.0 lighting solution for your reptile terrarium, look no further than the REPTIZOO CT5026 lamp. This 26-watt bulbs emits a strong UVB light that is essential for reptiles in order to synthesize vitamin D3 and calcium. It also provides full-spectrum lighting to promote healthy growth and coloration. The long spiral design of the bulb allows it to cover a large area, making it perfect for larger terrariums. Plus, the included clamp makes it easy to install and keep in place.