... grade Brightness adjust: canadjust to the brightness (25%, 50%, 75%, 100%)through the side of LED desk board button.7- 5 grade ... speed adjust.8- It’s easy to select run sequence of the ... /98/2000, Vinsta system.High Quality and competitive priceComposing parts 1, LED desk board 1PCS 2, USB cable 1pCS 3, CD- ROM ...