Not exactly sure what you meaning by " explain the difference in the lettering between the old Pulsar thermal monocular ???
They are different models
Helion XQ and Helion XP are the latest handhelds the XP has double the resolution so gives more clarity and definitions
The XP is more expensive and some say you better to buy a Helion XQ50 instead of a Helion XP38 - range identification is the same - but a 50 is better than a 38 (like scopes bigger aperture so more light/FV etc)
Bookmarks