Hi, I purchased 3 of your 3 led motion sensor detection lights. I have opened and taken the battery isolator off on 2 lights and they light up briefly then turn off. Then when trying to set off the motion detection, nothing happens. I'm not sure if these are faulty, all batteries are in firmly and I have tried other AAA batteries to rule out if the ones included were not working. The 2 are in a walk in wardrobe on the ceiling.
I haven't opened the 3rd one yet.
If you could give any advice, I would appreciate it.