I have 3 side by side switches all controlling different lights. I have removed one of the switches and installed a Luton Diva dimmer that works. However, the switch I took out (replaced) only had two wires both black and no ground or even a screw for a ground. I've capped the red & white wire with the blue connector as instructed. I've obviously connected the red and black wires correctly as the dimmer works. My question is, what should I have done with the green ground wire on the Diva? Because I have nowhere to connect
bwso the green wire I have just left it floating uncapped in the box. Is this OK or dangerous?