Reptile Systems Eco T5 Unit Zone 3 – 8W 312mm UVB Lighting Kit

The RS Eco T5 Unit Zone 3 is a compact, single-lamp T5 lighting unit designed for reptile keepers who need reliable, full-spectrum UVB output in a straightforward, ready-to-run package. At 8W and 312mm, it suits smaller vivarium setups where Ferguson Zone 3 UV levels are required — covering species that experience strong, direct sun exposure in the wild and need meaningful UVB to synthesise vitamin D3 and process dietary calcium effectively.

Reflector and Light Output

The unit includes a 103° removable reflector with an uncoated, highly reflective surface, designed to distribute light across a wide area of the vivarium floor. This spread maximises the usable UV zone available to the animal, rather than concentrating output in a narrow beam.

Lamp and Ballast

The RS Eco T5 Unit pairs an RS HOT5 lamp with an electronic, flicker-free ballast integrated into a single lightweight housing. The lamp is engineered to replicate the spectral profile of natural sunlight as closely as possible, producing balanced UVA and UVB alongside accurate, natural colour rendering. UVB output supports the self-regulating photochemical process that allows reptiles to convert UV exposure into vitamin D3 — essential for calcium absorption and the prevention of metabolic bone disease.

Ferguson Zone 3 — What That Means

Ferguson Zones are the current standard framework for matching UV provision to a species' natural behaviour and habitat. Zone 3 covers species that bask openly and regularly, experiencing higher UV indices in the wild. Providing the correct zone is not guesswork — it is the most accurate way to replicate a reptile's natural UV environment in captivity.

Examples of Zone 3 Species

• Bearded dragon
• Hermann's tortoise
• Veiled chameleon (Yemen chameleon)
• Giant day gecko
• Green iguana
• Yellow-bellied slider

What's Included

The unit ships with a fixing kit, link cable, straight connectors, and a mains power lead — everything needed to mount and connect it without sourcing additional components.

For keepers setting up a Zone 3 enclosure, the RS Eco T5 Unit gives you a properly specified, complete lighting solution with no compromise on the UV output that your animals genuinely depend on.