[DutchmenSport]

You are correct, there is no 'on-off' switch on those motion sensor lights. If it is failing and you want to keep it, then replacement is your only choice. If you do replace it, why not install a simple toggle on-off switch also, so if you want it truly "off" it will be "off". I cut the wires on mine completely. I hate the thing. As soon as you open the outside door at night, that BRIGHT light blinds you and you can't see a thing. Why they put it FACING the door is beyond me.

Here's another thread, similar to what you are asking:

Click here.

Here's another post thread:

Click here too.