Alldaymall Wf-502B Cree Blue LED Flashlight http://www.amazon.com/gp/product/B008YQDEFK/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1 So I just wanted a flashlight that would light up frags/corals for viewing at frag swaps. I took my chances with this Amazon purchase. In short, the light works great for lighting up corals. I haven't used it for a full day of frag swapping but I'm liking the results so far. It requires using rechargeable 18650 batteries. Pros Decent lighting ability even with indoor lighting. Will show coral fluorescence. Small and lightweight. Cost me 12$ (not including battery cost) Cons None yet. I've only had the light for about 2 weeks now. (will update if issues found) Here are some pictures of the fluorescence. These pictures were taken in with no lights on. The pictures don't do the light justice, the corals fluoresce even more in person.