Reptile Systems Eco T5 Unit Ferguson Zone 4 - 15%

The Reptile Systems Eco T5 Unit Zone 4 is a complete, ready-to-run T5 fluorescent lighting kit built around the Ferguson Zone system — designed for reptiles that need high-intensity UV exposure to thrive. Available in a range of sizes to suit enclosures of different scale, each unit pairs a Reptile Systems HO T5 lamp with a reliable, electronic, flicker-free ballast in a single integrated package.

Built-In Reflector

The unit features a 103° removable reflector with an uncoated, highly reflective surface that delivers a powerful, wide spread of light across the enclosure floor. This maximises the usable UV gradient your reptile can access, and the reflector's design puts more output where it counts rather than losing light upward into the hood.

Full-Spectrum UV Output

Reptile Systems lamps are engineered to replicate natural sunlight as closely as possible, producing a balanced combination of UVA and UVB alongside accurate, natural colour rendering. UVB exposure enables reptiles to synthesise vitamin D3 through a self-regulating photochemical process — a process essential for calcium absorption and the prevention of metabolic bone disease.

Ferguson Zone 4 — What That Means

The Ferguson Zone system classifies reptile species by their natural UV exposure and basking behaviour, providing a science-based framework for selecting appropriate lighting intensity. Zone 4 covers species that occupy exposed, sun-intense environments and require the highest UV indexes available in captive husbandry. Species in this category include:

• Bosc monitor
• Moroccan uromastyx
• Marginated tortoise
• Chuckwalla
• Sungazer

What's Included

Every unit comes supplied with a fixing kit, link cable, straight connectors, and a mains power lead — everything needed to mount and run the light straight out of the box. No additional components are required to get started.

Select the size that best matches your enclosure dimensions from the variant options above. Choosing the correctly sized unit ensures your reptile receives consistent UV coverage across the full basking zone, with no compromise on output at the edges.