They are all wired together with about 1m of cable apart and a transformer which needs mains supply. Collection only as quite fragile, from Darwen Lancs. The item "LED Backlit Photo Picture Poster Wall Display Sign Holder Frame" is in sale since Tuesday, April 9, 2019. This item is in the category "Business, Office & Industrial\Retail & Shop Fitting\Retail Display". The seller is "b8sax" and is located in Darwen.This item can't be shipped, the buyer must pick up the item.