I used the flashlight in several places where there is clearly rodent activity. The light did not appear to reveal anything that that would show the tracks of urine as advertised. I found the flashlight to be a totally useless device to help track rodent activity.

I purchased the Scorpion UV Flashlight to hunt for scorpions. The first night I went outside hunting scorpions, I had just stepped outside my front door onto my front porch, and I scanned my front porch with the scorpion flashlight. A big scorpion was immediately revealed by the light---it shone a bright, lime green. A quick spray of some scorpion killer ended it. I kept scanning the front of my house with the light, and I found one more tiny scorpion (the size of my thumbnail) crawling in between the cracks of my landscaping bricks. Once again, death by scorpion spray. However, I will say that if you choose to order this light, you need to also buy UV goggles to wear. The packaging of the flashlight recommends that users wear the UV goggles---otherwise, one could damage one's eyes because of the UV rays emitted by the flashlight. My family and I feel much more secure knowing that we now can spotlight scorpions and kill them as soon as we see them. Happy hunting to all!

At first thought this was a piece of junk, did not see anything on the first side of the house, then nothing on the front of the house, then we turned the corner and they lit up like glow sticks! Very good value and I think we really made a dent in the population....