Review on 🦎 Accurate UVB Testing with WACOOL UVB Tester for Reptile Bulb/Lamp - Pack of 2 by Dawn Clark

That's enough for a basic assessment of UV radiation, and they work. Comparing readings of natural outdoor sunlight with readings of indoors through double glazing and a choice of UV and non-UV output lamps, they appear to be working 👍🏼 By measuring the intensity of violet one can tell if there is very little or much of it is UV. . I am satisfied and would buy them again, especially for the price