Use: mainly used to identify documents, bills, documents, alteration, cover-up, retreat, forgery, add strokes, handwriting indentation, anti-counterfeiting and so on.
Fire band:300nm, 365nm, 450nm, 520nm, 580nm,620nm, 900nm, 000nm;
Receive band:000nm, 450nm, 520nm, 600nm, 700nm,740nm, 800nm, 900nm;
Specific light sources:254nmLight365nmLight source, crack side light source for observing handwriting indentation, diffuse light source