16"x 9" Adjustable Brightness Open Signs for Business, Ultra Bright Lighted Sign Open Powered by USB with ON/OFF, Electric Light up Sign for Stores, Restaurants, Retail Shops, Bar (Horizontal)10 Levels Adjustable BrightnessThe neon open sign comes with a smart button that allows you to turn the sign on or off and adjust the brightness. With 10 levels of brightness ranging from 10% to 100%, it meets your varying needs. The sign retains the previous brightness setting when turned off and back on, so there's no need to readjust, offering you convenient use High Quality & Energy Saving: Neon sign utilizes acrylic insulation material and high