This UV flashlight is very versatile. - For checking of banknotes (. Eg when selling things on display) - To make to check the cleanliness in hotels or in their own homes to the dirt for children or beads visible. - In the field of biology - To consider at events, eg by name / authorization signs, without dazzling the people interfere / to. Trying to read so without disturbing others, has not worked out, but the paper seems to gray, the contrast is low (safe depending on the paper quality). For all these purposes, the torch is perfectly adequate. I am very happy with it.
