Good fro dective work when paired with a UV light source.
I use these with a UV light source ( http://www.amazon.com/gp/product/B00E9T92L6/ref=wms_ohs_product?ie=UTF8&psc=1 ) to help identify organic stains. It's like a Poor Man's version of the &#34;ALS&#34; (Alternate Light Source) they use on CSI.
Rating: 5 stars