Yes there is an intensity sensor that works well. I have compared the Docter optics red dot right next to the JPoint one and have found the dot more intense and clearer on the DocOptics one. As far as the LE version, I was told that it is even brighter than the regular. Apart from that the rep I spoke to said that there is not much difference. The site does not function correct but I gained most of my online ifo on them from going to 3rd party sites. Also, I think that from the front of the sight, the small emmitted light is less noticable on the DocOp one.