The photo shows a 27x40 lightbox with two 36 inch bulbs, but this ad is for a 36X36 INCH LIGHTBOX WITH 4 BULBS INCLUDED IN THE SAME FRAME TYPE. It is easily changeable while on the wall. Most 36x36 inch posters are meant to be lit and you will be amazed what the poster will look like when it is properly lighted. Made In The U.S.A. With Pride.