The Technical Pro RL-B11 Rack Mount Light is a 1U light with 7 color setting and 30 display modes designed to light a rack mount in a dark environment, It has separate color sequence and speed adjustment buttons, Light your rack for better visibility in a dark environment, 7 color settings / 30 display modes, Separate color sequence and speed adjustment buttons, Color: Black, Dimensions: 19"" W x 2"" H x 2, 26"" D, SKU: TCHPRO222