This "OPEN" sign LED display is great for shops, c-stores, casinos, gas stations, beauty shops, shopping malls to advertise that you are in business. Ultra light LED makes it as a high visible attention catcher. Lightweight is perfect for storage. It is also easy to install. Measurments: 18.9" wide x 9.8" tall (48cm x 25cm). Power On/Off button on cord. Indoor use only. A metal hanging chain for hanging is included. Power cable is about 58" long. No battery needed.