These UV/Flashlight 2 packs are awesome. I gave one to my grandson and he is having a ball lighting up his room and watching how the UV changes everthing. I guess I will have to get him some posters! Thhas 4 different modes it can go in, High LED flashlight, Low LED flashlight, strobe light in case you need help, and of course the high UV light. The UV light is also great for spotting bodily fluids that have been on the wrong place making for easy clean up. We are taking these camping with us.. They are waterproof also which is great if they get left out in the rain or some other water source. These are a great quality and easy to carry bcaue they are not huge, they just work like they are! Fabulous!