Exo Terra UVB Nano 9w Bulb

The Exo Terra UVB Nano 9W Bulb is a compact UV lamp built specifically for nano and mini terrarium setups. At 9W, it delivers a balanced output of both UVA and UVB radiation in a form factor sized to work within smaller enclosures and purpose-matched lighting fixtures — making it a practical and targeted choice for keepers running compact vivarium builds.

UVB Output and D3 Synthesis

This bulb produces optimal levels of UVB to support vitamin D3 photosynthesis in reptiles, amphibians, and invertebrates. Adequate D3 synthesis is essential for calcium metabolism, and without it, animals are at risk of metabolic bone disease. The UVB Nano's vitamin D3 yield index is calibrated to support this process effectively in smaller enclosures where light distribution is naturally more contained.

UVA and General Wellbeing

Alongside its UVB output, the bulb emits UVA radiation, which plays a role in the broader behavioural and physiological wellbeing of reptiles and other terrarium species. UVA influences activity patterns, feeding responses, and natural behaviours that are often overlooked when lighting is reduced to heat and UVB alone.

Designed for Nano Setups

• Sized for use with the Exo Terra Reptile Deep Dome Nano fixture
• Compatible with Exo Terra Nano and Mini terrariums
• Can be paired with a Daylight Basking Spot Nano or Daylight LED Spot Nano to meet specific light and temperature requirements
• Can be combined with an Infrared Basking Spot Nano for a full 24-hour lighting and heat cycle
• Suitable for reptiles, amphibians, and invertebrates — not intended for general domestic use

Replacement Schedule

UV output degrades gradually over time, even when a bulb appears to be functioning normally. To ensure your animals continue to receive the correct level of UV exposure, Exo Terra recommend replacing this bulb every 12 months regardless of visible condition.

For keepers running nano terrarium builds who want reliable UVB in a compact package, the Exo Terra UVB Nano 9W Bulb covers the essentials without requiring an oversized fixture or complicated setup.