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Reptile Lighting – Combo Units for UVB Lights, UVA, Heat and Night Bulbs

mediaAlthough I have kept reptiles and amphibians since childhood, and worked in zoos for most of my adult life, I remain amazed by the array of herp-care innovations that are available to us today.  True, not all are necessary (and some are downright ridiculous!), but many are indispensable to serious hobbyists and zookeepers alike.   Advances in reptile lighting technology, for example, help private keepers to breed animals that, not so long ago, failed to thrive even in large zoos.

I’m particularly fond of combination hoods and fixtures, especially when I recall the rat’s nest of tangled wires and lamps that topped every zoo exhibit and holding cage years ago…thinking back to my early years at the Bronx Zoo, I cannot imagine how we avoided fires and electrocution!  Combo hoods have space for several different types of bulb, allowing us to keep UVA, UVB, heat and night (red/black) bulbs in one place. In addition to the convenience factor, the movable sockets and integrated timers included in some models increase our ability to establish thermal gradients, natural day/night cycles and “dawn/dusk” periods.  Today I’ll review a few reasonably-priced units offered by two well-known leaders in the field. Read More »

UVB Light: Why Do Reptiles Need It, and Which UVB Bulbs are Best?

Our understanding of the role that Ultraviolet B Light plays in the lives of reptiles and amphibians has increased greatly over the last few decades, but we still have much to learn about the needs of individual species. A good deal of conflicting information has been published, and opinions differ even among my well-experienced herpetologist colleagues. Today I’ll provide some basic information on UVB light in natural and captive situations, including some tips as to how best to provide it to the animals under your care. I’d like to stress that many variables will affect your individual situation…please post below for specific information.

What is Ultraviolet B (UVB) Light?

The various types of light are characterized by different wavelengths, which are expressed in nanometers (nm). There are three types of Ultraviolet Light, two of which are important to reptile and amphibian husbandry.

 

Gopher Tortoise

Uploaded to Wikipedia Commons by Gary2863 at en.wikipedia

UVB Light has a wavelength of 280- 320 nm. Many reptiles synthesize Vitamin D3 (or, more specifically, Pre-Vitamin D/Cholecalciferol) in their skin when exposed to UVB light. The optimum range for Vitamin D3 synthesis in reptiles is 290-315 nm.

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