It is small and compact, thus it is very to install in anywhere. The sensor is not very sensitive so when you get very close, say about 1 meter then it turns on. I wish it can turns on a little further than 1 meter. The lights did not work in the third day after the installation. Then they worked for a few days and then rested for a couple of days. Last week one of the lights was dead for good. I have enough of this and packed them up and returned them back to Amazon and hopefully I will get my money back.