No specific issues with this product, the detection is a radar detection by hyper frequency (not infrared) and this is as expected; adjustable sensitivity! point to know the ignition time also adjustable, made to turn off the light at the end of the timeout, and this even if you are still present in the sensing field; this is explained in the manual, it is necessary that the system is put "at rest" at the end of the timeout to be able to detect new 2 seconds! that is why this product is better suited in a crossing because he did not then need to stay on (as long as a person is present), it turns on again without problems when a new passage. ..
