The sun is the biggest source of energy known to mankind. It is virtually inexhaustible, the energy is cheap, and its rays have many other benefits besides putting machines to work. Some of these rays we can see, some we can't. There are even a few types, such as ultraviolet light, that are harmful. This article will be focusing on the ultraviolet rays and their use in UVA bulbs, sterilizers and many other things.

Essentially, there are three different types of ultraviolet rays. The first is UVA, and this is the only type we can see. Nowadays you can find special UVA bulbs sold in stores. These are used for the care of reptiles as well as tanning beds. The second type is UVB, an invisible wavelength. The tan you gain from sitting on a beach is caused by this type, and it is also a source of vitamins. The last type is UVC, which is used in ultraviolet sterilizers that can kill harmful bacteria. This type is the most dangerous of the three as it can actually destroy DNA. Using sunscreen while on the beach will help to stay safe from this type of ultraviolet rays. This is also why it is not a good idea to stay out in the sun all day.

Most tanning beds currently use both UVA and UVB lighting. There are dangers associated with both such as skin cancer, but if a tanning bed is used moderately the risk is severely reduced. Animals benefit from similar devices as well as humans. Reptiles, for example, need UVA and UVB rays to survive. UVA induces normal behavior in reptiles such as eating, sleeping and even mating. UVB is responsible for the synthesis of vitamin D3 so that reptiles can process calcium in their system. This helps prevent metabolic bone diseases.

Most pet stores will carry UVA bulbs, occasionally selling it along with the tank. Tanning beds have their UVA light source included, but in case a replacement is needed the stores stock UVA lamps. Most importantly, remain cautious while using this technology. Keep your eyes shielded as much as possible, and rub a little oil or lotion on your skin, either before or after.

Reptiles are not affected by the negative aspects of either of the two rays, but it might be a better idea to use the lamps moderately. Two hours a day, whether for reptiles or humans, is enough to keep both kinds of creatures healthy and happy.

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Suntan-bed.com provides you with information on how to determine what the best uva bulbs are and where you can get your tanning bed supplies.