Displays2go Oval Shaped LED Flashing Sign Reads Open, Semi-Gloss Lens with Hooks and 2 Chains (LEDOPEN13) Light box can be hung in a window or on the wall and includes hooks and chains. Unit is pre-programmed with 3 illumination options. Plastic semi-gloss lens and matte black frame emphasizes the message. LED bulbs use less energy than traditional neon signs. Displays2go SKU No.: LEDOPEN13