Need Help! Flood light camera, add without QR code?

My husband bought a ring flood light camera plus wired about 2 years ago and installed it, but he never set it up with ring so the camera has never been used. I purchased some stick cameras to put up and I wanted to add the flood light camera to my account to use that camera too. But, the sticker the QR code & Pin is no longer on the back of the camera and of course my husband didn't save the box. So, does anyone know how I can add this ring flood light camera to my Ring account with out the QR code or Pin or box it came in so we can use the camera? Or know if there is another place on or in the device the code might be?