Enhance the beauty of your terrarium with the Exo Terra Repti-Glo 5.0 Bulb. This item delivers a moderate-to-high UVB output which is similar to that of shady environments like rainforests and other tropical locations. Your pet will feel right at home. These UVB bulbs are recommended for use with the Repti Glo 2.0 for optimal illumination. Correct lighting encourages activity reproductive behavior and appetite. Reptiles living in simulated habitats also receive less UV radiation because the environment prevents direct sunlight from reaching them or their basking sites. The Exo Terra UVB bulb is suited for tropical and sub-tropical reptiles.