Exo Terra Reptile UVB200 T5 VHO 39W 34" Lamp – PT2428

The ET Reptile UVB200 T5 VHO is a 39W, 34-inch Very High Output fluorescent tube designed for reptiles that bask in partial sunlight or dappled shade — species whose UV requirements sit in the mesophotic zone rather than at open desert extremes. Manufactured in Germany to a high quality standard, it delivers a rated UV output lifespan of 12 or more months, making it a dependable choice for keepers who take photoperiod and UV provision seriously.

Why the Mesophotic Zone Matters

Reptiles from partially shaded or transitional habitats don't simply sit in full sun — they move between light and shade to regulate body temperature and UVB intake simultaneously. Replicating this balance in a vivarium requires a tube that produces meaningful UVA and UVB alongside a well-balanced visible spectrum, rather than raw intensity alone. The UVB200 T5 VHO is built around that requirement, using a unique phosphor blend engineered to replicate the solar UVB spectrum.

UVA, UVB, and Animal Health

• UVB output supports healthy Vitamin D3 synthesis, which in turn drives calcium absorption and reduces the risk of Metabolic Bone Disease
• UVA emissions help stimulate natural appetite, activity levels, and reproductive behaviour
• Very High Output rating means UVB penetration exceeds that of standard T8 tubes and energy-saving alternatives
• Enhanced penetration makes it suitable for taller terrariums and enclosures fitted with denser mesh screens

Output and Compatibility

At 39W in a 34-inch form factor, this tube is intended for use with a compatible T5 high-output controller or T5 terrarium canopy unit. The VHO rating means it pushes more UV energy over a greater working distance than a standard T5 lamp of equivalent length, giving keepers more flexibility in fixture positioning within the vivarium.

Key Specifications at a Glance

• Wattage: 39W
• Length: 34 inches
• Tube type: T5 Very High Output (VHO)
• UV classification: UVB200 (7% UVB)
• UV output lifespan: 12+ months
• Origin: Manufactured in Germany
• Product code: PT2428

For keepers housing species from woodland edges, rainforest canopies, or any partially shaded habitat, the ET Reptile UVB200 T5 VHO delivers the spectral balance and output consistency needed to support long-term animal health without guesswork.