The Exo Terra Reptile UVB150 has a very high UVB output similar to sunlight in deserts. These locations receive more direct sunlight. Therefore desert reptiles are more exposed to UV radiation than any other type of reptile. This bulb can also be used on terrariums with denser screen covers to ensure sufficient UVB penetration. Wide screens can filter out up to 50% of the UVB rays. The high Vitamin D3 yield index provides vitamin D3 photosynthesis, aiding calcium absorption and preventing metabolic diseases. New Spectrum! Former Repti Glo 10.0 Ideal for all desert-dwelling reptiles High UVB output Very high D3 conversion Effective up to 50 cm (20") Provides necessary UVB rays for optimal calcium metabolism Recommended for terrariums with dense screen covers Combine with Natural Light for optimal visual light output

The Exo Terra Reptile UVB200 emits the ideal UVB spectrum for optimal Vitamin D3 photosynthesis. The Reptile UVB200 Bulb is designed to simulate conditions for very high UV requirements, like diurnal reptiles from desert environments. These areas receive direct unfiltered sunlight with high levels of UVB. The significantly high Vitamin D3 yield index increases vitamin D3 photosynthesis to aid calcium absorption and prevent metabolic diseases. The extended UVB penetration makes this bulb ideal for taller terrariums or terrariums with denser screens.

Optimal levels of UVB, UVA, visual light, and heat in one bulb! Provides the benefits of natural sunlight Help prevent metabolic bone disease Increased UVB penetration distance (+30 cm / 12")