Bests & Worsts Reviews from Amazon

I've purchased a few black lights that were worthless so I wasn't expecting much. However, we have had our puppy for 4 months and she is still not housebroken! So I'm desperate. First I tried in my kids room because there was a fresh wet spot. Didn't show anything - but I tried it elsewhere just in case. And good grief my carpet lit up all over the place in two areas I know the pup likes to potty. And in a few I didn't know about! Turns out this will not work on wet urine, it must be dried to pick up under the light. Time to start cleaning!!!