I purchased one of these a couple of years ago and have had zero problems with it. I decided to purchase another one of these Defiant solar security lights and do a review on it.
These lights are available at Home Depot and even online. If you purchase one of these from Amazon or eBay be careful, I have read some reviews that some that are being advertised as "new" are actually used.
Here is the link to Home Depot: http://www.homedepot.com/p/Defiant-48-Light-White-Outdoor-Solar-LED-Motion-Light-84045/205081814