The ReptiSun T8 5.0 is the standard-output linear UVB tube for low-UVB reptiles in wide, shallow enclosures — turtles, tortoises, iguanas and other diurnal species. It emits 5% UVB. Its practical reach is short: the UV Index falls below 0.4 past about 40cm, so it does not suit a tall enclosure. It also needs replacing twice as often as the T5 HO version, which is worth factoring into the running cost.
Features
- 5% UVB — for reptiles with low to moderate UVB requirements.
- Four lengths — 45cm, 60cm, 90cm and 120cm, to fit standard T8 fittings.
- Drop-in T8 bi-pin format — fits existing aquarium and terrarium hoods.
- Made in Germany.
Getting the distance right
UV Index runs roughly 2.6–3.5+ at 8–10cm, 1.0–2.6 at 13–18cm, 0.7–1.0 at 20–25cm and 0.4–0.7 at 30–40cm. Mesh screen cuts output 30–40%; glass and acrylic block UVB entirely.
Replacement
Replace every 6 months.
For longer reach and a 12-month interval, see the ReptiSun T5 HO 5.0. More in Reptile Heating & Lighting.
