Littlite Raklites. Single space rack panels designed for standard 1 RU rack installation. (19" x 1.75") Our rack light products for pro audio and A/V racks are available in three configurations.RL:One or two 12" High Intensity (5-Watt Halogen) gooseneck lights.RL-LED: One or two 12" LED gooseneck lights.RLX: Two 3-pin XLR connectors for use with of our X or XR series individual goosenecks (goosenecks sold separately). All RAKLITES are available with 240 volt Euro-Style power supply (Model suffix E) or with power supply deleted (Model suffix A)