Most blacklights can actually be dangerous, as they emit harmful UV radiation in the UV-B and UV-C wavelengths. The majority of them on the market are so poorly manufactured that they are not safe for human exposure in close proximity.

For night lights or viewing blue or red LED's would be a much better choice. Besides being pleasing to our eyes, and being super efficieant, moonlights are 'thought' to improve the overall health of our captive animals.