2 Years ago I bought a Gemmy Grim Reaper. Last year I tried to activate it by using a outdoor flood light with motion detector. I hooked up a flood light so that when motion was detected the flood light would shine on the Reaper to activate it. The Reaper did not activate when the light came on, but when the light went out after my trick or treaters had left. Any idea how to have more control of when the Reaper activates?

Thanks for your respones.