Deliver the maximum, ultra-high-intensity UV output required by true midday sun-worshippers. The Reptile Systems T5 Ferguson Zone 4 Lamp is a premium, high-output (HO) fluorescent bulb specifically engineered for desert and rock-dwelling reptile species that require intense, unfiltered UV exposure to thrive.

Crafted in Germany, each batch of these full-spectrum lamps is thoroughly tested for precise UV index output. By perfectly simulating the intense, blistering midday sun of arid regions where foliage cover is non-existent, this potent 15% UV output effectively triggers the critical vitamin D₃ synthesis your pets need to process calcium. This ensures excellent skeletal health and completely eliminates the risk of Metabolic Bone Disease (MBD).

Why Choose the Reptile Systems Zone 4 T5 Lamp?

• High-Output Efficiency: T5 technology provides significantly deeper light penetration and greater energy efficiency compared to standard, outdated T8 fluorescent bulbs.
• True Full-Spectrum Color: Features excellent color rendering to bring out and enhance the stunning, vibrant natural colors of your reptiles and habitat.
• Batch-Tested Quality: Made in Germany and individually batch-tested to guarantee consistent, reliable, and safe UVI (UV Index) output for optimal animal welfare.
• Eco-Series Compatible: Designed as the perfect replacement bulb for the Reptile Systems Eco Zone 4 T5 fixture.

Is this right for my pet?

This lamp is specifically calibrated for Ferguson Zone 4 animals—midday sun baskers that spend prolonged periods under maximum heat and UV light to regulate their health.

Perfect for:

• Uromastyx (all species)
• Chuckwallas
• Bosc (Savannah) Monitors
• Spiderman Agamas
• Rhinoceros Iguanas

Specifications & Sizes

• UV Output: Equivalent to 15% UV
• Expected Lifespan: Replace after 1 year of normal use to ensure optimum UV output.
• Size & Wattage: 22-inch bulb (for 24 inch fixture); 24 Watt

Important Safety & Installation Notes

• Ballast Required: This is a replacement bulb only. It requires a compatible T5 electronic ballast/controller to function and will not operate on standard magnetic ballasts.
• Safe Distance: Because Zone 4 lamps are exceptionally potent, proper distance is critical for your animal's ocular (eye) health. Always mount this lamp horizontally overhead at a minimum distance of 12 inches away from the back of the animal.
• Enclosure Adjustments: Take your setup into account when positioning. Mesh top screens can reduce UV levels by 30-50%, while using a high-quality reflector can easily double the light output reaching your enclosure to maximize your photo-gradient.