Leviton VRPD3 (plug in module) dimming, not shutting off

Hi, I picked up a handful of Leviton VRPD3 with the hope of using them with Smartthings to turn on and off the various Christmas lights around the house. It seems as though, by default the outlet only dims, and doesn’t actually shut off. With LED lights, they stay lit. Any ideas on how to actually shut it off. If I change the device type to something other than dimming switch will it make a difference?