2006 Opti Neon Sign measures 15 1/4" x 15 1/4". Original stickers on back. I tested this sign with an adapter and it works fine. This sign needs a right angle dc adapter in order for it to lay properly against the wall when hung. I do not have the adapter for this sign. I only had the straight barrel adapter to test.
This sign is heavy, weighing just over 5 lbs.