The Iguana Den




The UVA-B-C's

UVA is the visible light which is thrown from bulbs and the sun which we can actually see. UVA plays an important role in the animals behavior. UVA light tells the animal when it is day, induces appetites, breeding behavior and other activities such as climbing, running, jumping and hunting.

UVB is not visible. It is a form of radiation put out by the sun and special coated bulbs made to produce UVB wavelengths. UVB in reptiles
allows the animal to process calcium in their system which helps to prevent and reverse metabolic bone disease. UVB in excess amounts
can be harmful to both humans and animals causing problems such as damage to the retina of the eyes, burns and other health risks. UVB is
what causes humans to suntan and sunburn. It is important to control the UVB lighting, or if using natural sunlight, to give the animal shade and areas where they can escape the constant exposure of UVB.

UVC is the wavelength used for Ultraviolet Sterilizers which kill harmful bacteria. This is a very dangerous wavelength to all animals
as it can damage DNA.

Ultraviolet radiation has particular physical characteristics which affect such phenomena as: Luminescence and Phosphorescence
and can cause Fluorescence. Short wave UV light is also widely used for sterilization.

Luminescence: the emission of light produced by means other than combustion such as the luminous glow of a watch dial.

Fluorescence: the emission of light produced by certain substances when excited by a UV energy source. This emission ceases when UV source is

Phosphorescence: the emission of light produced by certain substances when excited by a UV energy source which continues after the energy source is removed.

Black Light: lamp producing UV light in the range between 320-380 nm. This type of long wave light is commonly referred to as "Black Light."


Short Wave Length
Range: 180-280 nm UV-C has germicidal power. Eye and skin protection is required.

Medium Wave Length
Range: 280-320 nm UV-B is characterized by the ability to cause sunburn.
Some eye and skin protection is advisable.

Long Wave Length
Range: 320-380 nm UV-A waves are commonly called Black Light or Wood's Light. Long waves can pigment the skin but do not cause sunburn. Eye protection is not required, but recommended.



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