The Zoo Med ReptiSun T5 HO 10.0 is a specialty high-output fluorescent lamp that delivers intense, bright light and strong UVB radiation. While renowned in the reptile world, this bulb has found a powerful niche in advanced saltwater aquarium applications. Its unique spectrum can be harnessed to stimulate prolific growth in specific photosynthetic organisms, making it a valuable tool for targeted cultivation within a reef ecosystem.

This 39-watt T5 HO lamp is engineered to be twice as strong as standard 10.0 UVB bulbs, providing significant output perfect for specialized setups. The increased UVB penetration is essential for promoting robust health and supporting the biological processes of certain marine life. Manufactured to exacting standards in Germany, this lamp is trusted by professionals for its quality, consistency, and performance where specific light wavelengths are critical.

This bulb is ideal for the advanced aquarist looking to maximize the performance of a refugium or cultivate specific species. When placed over a refugium, it can dramatically accelerate the growth of macroalgae like chaetomorpha for superior nutrient export. It is also an excellent choice for aquarists keeping certain species of Tridacna clams that benefit from the inclusion of UVB for healthy development and vibrant coloration.