100% junk n waste o money. Sorry 2 b the badnews bears.
Like Loki said u can DIY one real cheap. From digikey.ca 12x bridgelux 3500k eb2 2ft strips n a hlg-240 will killbill a 3x3 fer under $300 CAD. 24x n a hlg-480 fer a 4x4 fer $550 all in. N thems will last 10+ years no drop in output.