I'd be interested in what shutter speeds you are running with the LPR cam four feet off the ground and not getting blinded. I'm running 4ms at night and it works very well. I can run a faster speed at night, but then the fringes don't work as well. This camera is on a corner, so some cars go straight and some turn right. None are really going fast, maybe 30 mph at best. During the day I can run it at 1 ms or faster. The camera I use is a 3 mp POE Sricam. Some people think they are junk. I don't know, it was relatively cheap and has worked since spring. I do use a separate 20 watt white LED shining at the car to aid in the illumination.
Good luck.
Wayne
Good luck.
Wayne