Not to beat a dead horse here:

But...

At 100 uw/cm2 this is a decent usable amount of uvb for the dragon.

They need over 50uw/cm2 for it to be worthwhile.


If it is 340uw/cm2 on a bright clear day. The ambient outside temp could be 85 degrees... this high uv index would cause a ramp up in heat of the dragon.

If they have no way of getting out of the direct sunlight.



If it was very overcast and cloudy but a very hot day. Say 100 degrees but overcast (low uv index).

I personally would rather expose my dragon to the heat (overcast 100 degrees minimal uv index) with no intense uvb and electromagnetic radiation.


Then to expose the dragon to a clear day cooler but higher uv index.


The thing is usually you dont get this because if its hot the uv index is typically higher also.



On a hot overcast day Im getting between 50-100uw/cm2 from my meter. The dragon will not have a ramp up in heat from this type of situation like they would with an intense UV index.


If it was a 100 degrees on an overcast low uv index (overcast day) the dragon would have no problem.


High UV index with high heat... equals: BAD SCENARIO


Furthermore...

The uvb is different than uv index... the uv index is what measures the potential damage and true strength of the solar radiation.

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