Exo Terra Reptile UVB 100 Compact Lamp

The Exo Terra Reptile UVB 100 Compact Lamp is a dedicated UVB source designed for tropical and sub-tropical species kept in vivariums and terrariums. It replicates the moderate, filtered UV conditions found in rainforests and humid tropical environments — where canopy cover and weather reduce direct sunlight but reptiles still depend on UVB to metabolise calcium and maintain long-term health. Available in two output options to suit different enclosure sizes and keeper setups.

UVB Output and Spectrum

This compact lamp delivers optimal UVB levels consistent with shaded tropical environments, where reptiles receive indirect rather than intense UV exposure. The spectrum supports vitamin D3 photosynthesis, enabling proper calcium absorption and reducing the risk of metabolic bone disease. It also emits UVA, which plays a direct role in stimulating natural behaviours including appetite, activity levels, and reproductive cycles.

Effective Range

The UVB output reaches effectively up to 40 cm from the lamp, making it well suited to mid-sized tropical terrariums where the basking or resting zone sits within that distance. Positioning matters — ensure your reptile can access the beam without obstruction from mesh or dense décor that may filter UV output further.

Suitable Species and Habitats

• Ideal for tropical and sub-tropical reptiles requiring moderate UVB
• Suited to rainforest, jungle, and humid woodland setups
• Appropriate for species that bask in dappled or indirect light rather than open sun
• Supports calcium metabolism and helps prevent metabolic diseases associated with D3 deficiency

Combining with Other Lighting

For a complete lighting setup, the UVB 100 Compact Lamp can be paired with a natural daylight or reptile vision lamp to improve overall visual light output within the vivarium. UVB lamps alone do not provide the full visible spectrum reptiles benefit from, so combining sources gives a more naturalistic and functional light environment.

Choose the output variant that suits your enclosure depth and species requirements — both options use the same compact fitting and deliver the same UVB 100 spectrum. If you're unsure which wattage suits your setup, consider the size of the enclosure and how far the lamp will sit from your reptile's primary activity zone.