Small (fifteen cm) and light (equipped with its charger combines three AA / LR6 batteries) flashlight projecting ultraviolet beam emitted by LED; ie rather broad spectrum but good intensity in the vicinity of 400 nm, which makes it very useful for: - Check bank notes containing fluorescent son - Look for dirt or chemical splash (not all!) - To identify with labels or fluorescent reflective panels, - With a little practice, recognize materials by the color change seen between UV and sunlight.
Research Scope average fluorescent surfaces: 5-10 m eg for paper / cardboard surface treated to the "white-blue".
Conclusion: excellent little tool to keep (loaded) at hand.
![deleyCON HDMI to HDMI Converter Adapter - HDMI socket to HDMI socket [plated contacts] (Electronics)](https://img.tgreer.com/thumb/85x85/b/5e/b5ef4b6c184c09d5.jpg)
