The Dimmermaster 408 SUG 20 Amp shoebox trussmount dimmer is a very compact unit with four U-Ground 1000W dimmers. It may be pipe or tree mounted and is perfect for tight spaces where conventional dimmer packs are too bulky. The unit accepts either DMX-512 or 0 to +10VDC control signals (the standard unit accepts DMX-512. It can be switched to 0 to +10V control as a factory option). The starting channel is set on a thumbwheel switch, which also provides load testing and local control. A status LED indicates the presence of a DMX control signal. With both male and female XLR connectors, the control signal may be daisy-chained from pack to pack. The DM-408 gets its power from a single standard 20 Amp wall outlet, and has a maximum total capacity of 3.6 kW.