Reptile UVB100 T5 Fluorescent Tube 39W 85cm for Terrarium — Exo Terra

Exo Terra Reptile UVB100 T5 Fluorescent Tube 39W 85cm is a linear T5 lamp developed for use in terrariums. The tube emits a controlled level of UVB radiation suitable for many reptile species, supporting natural vitamin D3 synthesis and calcium metabolism when installed at the correct distance above the enclosure. Designed for mounting in compatible T5 fixtures, this 85 cm lamp is intended for both terrestrial and arboreal setups and for use with a reflector or fixture that ensures even light distribution across the habitat.

Advantages

The T5 format provides a compact, energy-efficient light source with stable UVB output across its length, helping maintain consistent exposure for reptiles. The 39 W power rating balances UVB emission and lamp longevity, while the 85 cm length fits a wide range of medium to large terrariums. The lamp integrates with standard T5 fixtures and reflectors, allowing for secure installation and improved light dispersion to reduce shadowing within the enclosure.

Suitable for

• Terrestrial reptile enclosures requiring moderate UVB exposure
• Arboreal setups where uniform overhead UVB coverage is needed
• Enclosures where vitamin D3 synthesis and calcium metabolism support are required
• Replacement or upgrading of existing T5 fluorescent lighting systems

Key specifications

• Form factor: T5 linear fluorescent tube
• Power consumption: 39 W
• Length: 85 cm
• Output type: UVB-emitting fluorescent light suitable for reptile husbandry
• Intended mounting: compatible with T5 fixtures and reflectors above terrarium
• Suitable enclosures: terrestrial and arboreal terrariums

How to use

Install the tube in a compatible T5 fixture or reflector designed for fluorescent tubes, ensuring the lamp is fitted securely and powered by the appropriate ballast. Position the fixture at the manufacturer’s recommended distance above basking areas to provide effective UVB exposure while avoiding excessive intensity. Maintain a regular schedule of daily photoperiod to mimic natural daylight cycles, and replace the tube according to the manufacturer’s recommended service life or when UVB output declines, even if visible light remains acceptable.

Usage recommendations

Monitor reptile behavior and health indicators such as appetite, activity level, and bone condition to assess whether UVB levels are appropriate. Use a UVB meter if precise measurement is required. Combine the UVB tube with suitable temperature gradients and dietary calcium sources to support vitamin D3 synthesis and overall metabolic health.