#MLVOCUVFlashlight available at http://www.amazon.com/dp/B01FS5I4GI
I purchased this 365nm lights for viewing my corals at night, and they both do a wonderful job. It is very bright considering they run on a single AA battery, and are relatively easy to focus the beam, though easy to knock out of focus due to the simple sliding mechanism. I have accidentally dipped the lens into the aquarium more than once and have had no problems, though I wouldn’t trust full submersion.
While it serve my purpose well. The 365nm light tends towards a pale blue/grayish hue and shows more white light carryover. The 365nm does show some of the reds/oranges a little bit better, but overall, it is a great light.
Disclosure: I received this product for free or at a promotional discount for my honest review and they are 100% my own opinions. However your own opinion might vary, so I invite you to try this great product out for yourself.