"one them works fine, but the other one after about an hour ..."
I ordered 2 of these lights and fitted them on an outside wall and wired them up
Unfortunately, one them works fine, but the other one after about an hour after being switched on, started strobing like a disco light,
So had to return it as faulty, but there was no problem with the Amazon return procedure.
The working light continues to function OK.Seems a shame as they appear to be well made.