UVB light, a vital component of natural sunlight, is crucial for the health of most reptiles. It supports strong bone development and aids in numerous other important bodily functions.

The Zoo Med T8 ReptiSun 5.0 UVB is a high-quality T8 fluorescent bulb crafted by specialists in Germany. It emits a moderate level of UVB, ideal for reptiles with lower UVB needs in more compact habitats.

Usage Guidelines:

Mount the 18″ Zoo Med T8 ReptiSun 5.0 UVB in a 20″ Zoo Med ReptiSun T8 Terrarium Hood and position it above the basking zone. This bulb is most effective for low-UVB reptiles in wide terrariums measuring 30-36″ in length.

To ensure consistent UVB output, replace the Zoo Med T8 ReptiSun 5.0 UVB every 6 months. For optimal performance, pair it with a Zoo Med Digital UV Index Radiometer or Solarmeter 6.5.

UV Index Readings:

3″ below bulb UVI 2.6 – 3.5+

4″ below bulb UVI 2.6 – 3.5+

5″ below bulb UVI 1.0 – 2.6

6″ below bulb UVI 1.0 – 2.6

7″ below bulb UVI 1.0 – 2.6

8″ below bulb UVI 0.7 – 1.0

10″ below bulb UVI 0.7 – 1.0

12″ below bulb UVI 0.4 – 0.7

14″ below bulb UVI 0.4 – 0.7

16″ below bulb UVI 0.4 – 0.7

Reptiles vary in their UVB needs. Refer to the Arcadia UV Index Lighting Guide to identify the appropriate UVI for your reptiles basking area.

Distances are calculated from the bulbs tip to the basking spot or reptile. UVI values are estimates and can decrease by 30-40% when the bulb is placed over a mesh screen.