18x24 INCH Graphic Size LED Light Box Movie Poster Snap Frame for Display Advertising 18x24 INCH Graphic Size. 17.5x23.5 INCH Viewing Size. 20.5x26.5 INCH Outside Dimension. On/Off switch on frame. Clear front lens to protect and hold graphics. Mounting holes to hang vertically or horizontally. Tool free design. Snap frame opens from inside out to insert graphics. Light weight aluminum frame. Edgelit LED illuminated technology for a lower profile. Laser cut engraved illumination guide panel for even brightness. UL listed power supply. One year warranty. Advertising on movie posters, event promotions, retail stores, restaurant, art display, trade show, car dealership, hospitals, libraries, shops, offices, companies, menu boards, jewerly store, hotels.