The desert-strength compact fluorescent in the ReptiSun range: 10% UVB and 30% UVA from an E27 screw base, self-ballasted, for basking species that want a high UV Index. That output is genuinely high at close range — around 2.6–3.5+ UVI at 10–15cm — so a shade-dwelling animal that cannot move away from it is the wrong match for this lamp.
Features
- 10% UVB, 30% UVA — for desert and open-basking reptiles.
- E27 screw base, self-ballasted — no separate ballast; fits standard dome and clamp fixtures.
- UVB-transmitting quartz glass.
Distance and replacement
UV Index runs roughly 2.6–3.5+ at 10–15cm, 1.0–2.6 at 18–20cm, 0.7–1.0 at 25–30cm and 0.4–0.7 at 35–40cm. Mesh screen cuts output 30–40%. Suits small terrariums up to about 45cm tall or 50cm long; anything larger is a job for a linear tube. Replace every 6 months.
The tropical equivalent is the ReptiSun 5.0 Tropical. More in Reptile Heating & Lighting.

