Same problem where randomly lights turn on. Installed last summer have had continious problem with lights randomly turning on. Lately (after firmware update?) random turn on seems to be better as the lights turn on maybe three or four times per night compared to before lights would turn on 10-15-20 times per night. There now apprears to be a delay of 1-2 seconds after motion is detected before lights turn on. Still not right but at least tolerable.