Reptile Systems T8 UVB Lamp Ferguson Zone 3 - 12%

The Reptile Systems Zone 3 T8 is a 38W, 1050mm (42") full-spectrum UVB fluorescent tube designed for reptiles and tortoises that are active, confident baskers — species that in the wild would spend long periods exposed to intense, direct sunlight. Built to Ferguson Zone 3 requirements, this tube delivers the UVB output these animals need for proper vitamin D3 synthesis and long-term health.

UVB Output and Placement

This tube produces a UVI of 3.6, placing it firmly in the Ferguson Zone 3 bracket — appropriate for species that regularly bask in open sunlight and require meaningful UVB exposure throughout the day. As a T8 fitting, position the tube approximately 12 inches from the animal's primary basking area to achieve the correct UVI at reptile level. Replace the tube every six months to maintain effective output, as UVB degrades well before visible light fades.

Full-Spectrum Performance

• 3.6 UVI output supports reliable vitamin D3 synthesis
• Full-spectrum emission enhances natural colouration and iridescence
• Shown to support improved feeding and breeding behaviour
• Always provide shaded retreats within the vivarium so animals can self-regulate exposure

Suitable Species — Ferguson Zone 3

This tube is suited to a wide range of high-UV-demand species commonly kept in the UK. Examples include:

• Bearded Dragon
• Ackie Monitor
• African Spurred Tortoise (Sulcata)
• Hermann's Tortoise
• Frilled Dragon
• Green Iguana
• Black and White Tegu
• Giant Day Gecko
• Panther Chameleon
• Yemen Chameleon

Specifications

• Wattage: 38W
• Length: 1050mm (42")
• Fitting: T8
• Ferguson Zone: 3
• UVI: 3.6
• Recommended replacement interval: every 6 months

For keepers housing high-UV species, this tube takes the guesswork out of lighting. Matched to a quality T8 controller and positioned correctly, it provides a consistent, measurable UV environment that supports animal welfare from the ground up.