Exo Terra Reptile UVB300 T5 VHO Lamp

The Exo Terra Reptile UVB300 T5 VHO is a Very High Output fluorescent tube engineered specifically for heliophilic and euphotic zone reptiles — species that bask in open or midday sun and depend on intense UV exposure for their health. Manufactured in Germany across a range of sizes to suit enclosures of different scale, these tubes deliver a potent combination of UVA and UVB alongside a well-balanced visible light spectrum.

What UVB300 Means for Your Animals

The 300 designation reflects this tube's suitability for reptiles requiring the highest available UV output — animals that in the wild would be active under intense, unfiltered sunlight at its peak. UVB drives healthy Vitamin D3 synthesis, which in turn enables effective calcium absorption and reduces the risk of Metabolic Bone Disease. UVA plays an equally important role, stimulating natural behaviours including appetite, activity levels, and reproductive responses.

Very High Output Performance

As a VHO T5 lamp, this tube produces significantly more UVA and UVB than standard T8 tubes or energy-saving alternatives. The enhanced output gives it greater penetration depth, making it well suited to taller vivariums or enclosures fitted with mesh screens that would otherwise reduce UV transmission. The unique phosphor blend is formulated to replicate the solar UVB spectrum as closely as possible.

Built to Last

These tubes are rated for a UV output lifespan of 12 months or more, maintaining effective UVB levels throughout that period rather than degrading rapidly after installation. Manufactured in Germany, the quality of construction supports consistent spectral output over the full service life of the lamp.

Choosing the Right Size

• Available in four sizes to match enclosures of different lengths and lighting rigs
• Recommended for use with compatible T5 terrarium top units
• Suited to diurnal, crepuscular, and heliophilic species requiring high UV exposure
• Select the size that fits your existing T5 fixture — wattage and tube length vary by variant

For keepers housing desert and savannah species in well-sized vivariums, the UVB300 T5 VHO range gives you confidence that UV provision is not a limiting factor in your setup. Choose your size from the options above to match your enclosure and lighting unit.