Easy to use
The directions are easy enough to follow.  It comes nicely packaged with several straps to help secure it in your desired area.  It has several modes which can be disconcerted by the color of the 'M' button.  Pressing the M button changes the modes.  You can plug it into a wall block, laptop or even a backup battery block.  The LED are red to my eye but I don't have anything to measure wavelengths.  It comes with a pocket for a battery but does not come with one.
Rating: 5 stars