Reptile Systems T5 UVB Lamp Ferguson Zone 3 - 12%

The Reptile Systems Zone 3 T5 is a high-output UVB fluorescent lamp designed for reptiles that require strong UV exposure — desert and savannah species in particular. Available in four sizes to suit enclosures of different scale, this tube delivers serious UVB and UVA output in a format that integrates cleanly into a T5 luminaire or electronic controller setup.

UVB and UVA Output

The Zone 3 tube produces 12% UVB, supporting the synthesis of vitamin D3 that reptiles would normally obtain through direct sunlight. It also emits 30% UVA, which contributes to natural behaviour and is an important part of a reptile's visible spectrum that humans cannot see.

Colour Rendering

Alongside its UV performance, the Zone 3 produces excellent natural colours within the vivarium. This makes it a practical choice not only for animal welfare but for clear observation of your animals day to day.

Compatible Equipment

These lamps require a compatible T5 electronic ballast to operate — they will not run on older magnetic ballast fittings. Use with a dedicated T5 luminaire or electronic controller for reliable performance and accurate output. For consistent UVB delivery, replace annually regardless of whether the tube still appears to be producing visible light.

Choosing the Right Size

The Zone 3 range spans four tube lengths, from compact options suited to smaller terrariums through to full-length tubes for large vivarium builds. Select the size that best matches your enclosure length and the placement of your T5 fixture to ensure even coverage across the basking zone.

For keepers housing high-UV-requirement species, the Zone 3 T5 range offers a straightforward, well-specified solution that covers both welfare needs and day-to-day visibility inside the enclosure.