Twobeardieguy
BD.org Sicko
Reptisun 10.0 is the best!!
Suzie22":50620 said:OK... Im keeping my fingers crossed that once I get the right uv light all this will clear up?
Can I get it from pet smart? Which is the best one to get at a pet store?
Also, if you type in "compact UVB's" and do a search in this forum, you will see all sorts of symptoms and problems associated with that type of bulb.How can 100 µW/cm² of light from one lamp be "stronger" than 100 µW/cm² from another?
Low wavelength UVB is more photo-active than high wavelength UVB.
To understand this, think about strong whisky and light, low-alcohol wine. Imagine that high wavelength UVB is like very light wine whereas low wavelength UVB is like neat malt whisky. You could drink one large glass of either, but the effects they would have on you would be very different. A few hours of 100 µW/cm² of higher wavelength UVB, like sunlight on a spring day, might not have much effect upon your eyes or skin, but expose yourself to a couple of hours of 100 µW/cm² of really low wavelength UVB and you would really regret it later.
But a UVB meter would read just 100 µW/cm² in both cases..............
Once again, even well burned-in lamps produce unearthly levels of UV radiation further than six inches from the side of the lamp. The new lamp with the highest output would need to be placed 16 inches above a reptile for the UVI to be below 6. Interestingly, the manufacturer's minimum recommended distance for a new Reptisun 10.0 lamp (positioned horizontally, like this, above the reptile with no mesh or reflector) is 23 - 25 inches, according to their new information sheet. This, according to our recordings (not shown on the chart) would yield a UVI of about 2.3.
The last chart in this series is that for the ZooMed Reptisun 5.0 Compact lamps. (Figure 14)
The first lamp, BJP1, caused photo-kerato-conjunctivitis in a small group of hatchling lizards which could approach to about 4 inches. Although the output of this lamp is far lower than that of a Reptisun 10.0, it it not insignificant, and the UVI climbs rapidly to hazardous levels at ditances closer than 4 inches.
The manufacturer's minimum recommended distance for a new Reptisun 5.0 lamp set up in this way is 17 - 19 inches. This would give a UVI of only about 0.8 with lamp BJP1.
The second lamp (BZC4) was of the older design, and had a lower output although it has also been in use for considerably longer, making a comparison difficult.
It is tempting to assume that all that is necessary, to enable these lamps to be used safely, is to calculate "safe" minimum basking distances with what seems to be a suitable UV Index, and ensure that these are always used. Although this approach should reduce the irradiation to a level where photo-kerato-conjunctivitis is unlikely, it may not be a long-term solution.
It is important to remember that the UV light which is producing these high UV Indices contains non-solar wavelengths. The effect of non-solar radiation on living cells is different to that of sunlight. Even using the UV Index as a guide for a safe basking distance may not be appropriate with these wavelengths in the beam. This will be considered further in the discussion.