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The Focus Spot 4Z has locking power In Out connections to daisy chain the power, as well as 5-pin DMX In Out to transmit a DMX signal from one fixture to the next. There is a USB firmware update port built-in plus advanced control options such as: 16-bit fin pan and tilt, multiple DMX control modes, and 6 different dimming options. The Focus Spot 4Z offers a robust light output in a light weight, compact foot print (18-inch high and one 23 pounds).