Exo Terra Reptile Aluminium Dome Fixture 15cm PT2348

The ET Reptile Aluminium Dome Fixture 15cm (PT2348) is a compact, versatile lamp holder designed for reptile keepers who want precise control over where heat and light are delivered inside a vivarium or terrarium. The extended aluminium reflector dome reaches beyond the face of most bulbs, directing output downward rather than letting it scatter — a meaningful difference when you're trying to create a focused basking spot or targeted UVB zone.

Reflector Design

The extra-long aluminium reflector is the core feature here. By extending past the bulb face, it significantly increases the effective light, UVA, and UVB output reaching the animal below — without requiring a higher-wattage bulb. That makes it a practical choice for keepers who want to maximise efficiency from their existing bulbs.

Socket and Wattage Rating

The heat-resistant ceramic socket supports both compact fluorescent and incandescent screw-based bulbs up to a maximum of 75W. Ceramic construction is essential here — it handles the sustained heat output of reptile bulbs safely over long periods, unlike standard plastic fittings.

Compatible Bulbs

This fixture accepts a wide range of screw-based reptile bulbs, including:

• Intense Basking Spot
• Daylight Basking Spot
• Halogen Basking Spot
• Daytime Heat Bulb
• Night Time Heat Bulb
• Infrared Basking Spot
• Natural Light bulbs
• Reptile UVB100, UVB150, and UVB200
• Solar Glo

Power Cord and Controls

An on/off switch is mounted directly on the power cord, which measures 180cm in length — long enough to reach a socket without needing an extension lead in most setups. The switch allows quick manual control without unplugging the unit.

Placement and Use

The 15cm dome size suits compact terrariums and targeted single-bulb setups. Multiple fixtures can be combined with different bulb types to build a layered lighting and heating system — for example, pairing a UVB bulb in one dome with a basking halogen in another to replicate natural photoperiods more accurately.

For UK reptile keepers setting up a bioactive vivarium or a straightforward basking station, the PT2348 delivers a well-specified, no-compromise fitting that works with the bulbs you're already using.