Thrift store find.

So after regretfully passing on 2 Grande for $200 locally. I've been blessed with this Amoeba one. Unfortunately it is not working properly. Could it be the the power cord is not matching exactly? 2 pic is of original power cord and 3rd is what i got. Would the 100 mA difference keep it from lighting up fully? There is a rattling noise inside it, but opening it up might be my last resource.