Exo Terra Reptile UVB300 T5 VHO 39W 34" Vivarium Lamp – PT2432

The ET Reptile UVB300 T5 VHO is a 39W, 34-inch Very High Output fluorescent tube designed for reptiles that require intense, sustained UVA and UVB exposure — specifically those species that bask in open or midday sun within the Euphotic or Heliophotic Zones. Manufactured in Germany to a high quality standard, it delivers a UV output rated for 12 or more months of reliable performance, making it a dependable choice for keepers who take photoperiod and UV provision seriously.

What This Tube Is Designed For

This lamp targets the requirements of heliophilic and heliophotic species — animals that actively seek intense sunlight and regulate both body temperature and UVB intake through peak-sun basking behaviour. The intensity of UV emissions varies with distance from the basking area, so positioning relative to the animal remains an important factor in setup.

UVA and UVB Output

• Very High Output (VHO) rated — UVA and UVB emissions exceed those of standard T8 tubes and energy-efficient compact alternatives
• Unique phosphor blend engineered to replicate the solar UVB spectrum
• Enhanced UVB penetration makes it suitable for taller vivariums or enclosures fitted with denser mesh screens
• UVA emissions support appetite, activity levels, and reproductive behaviour

Health and Physiological Benefits

• Promotes healthy Vitamin D3 synthesis, which in turn supports calcium absorption
• Helps guard against Metabolic Bone Disease — a significant risk in UVB-deprived reptiles
• Replicates the key regions of the natural sunlight spectrum relevant to reptile physiology

Practical Keeper Information

• 39W T5 tube, 34 inches in length — confirm fitting compatibility before purchasing
• Long-lasting output rated at 12+ months
• Recommended for use with a compatible T5 terrarium canopy or top unit
• Available in multiple sizes to suit different vivarium lengths

For keepers housing desert, savannah, or other high-UV-demand species, the ET Reptile UVB300 T5 VHO provides the output intensity and spectral accuracy that serious reptile husbandry requires.