This is a 6 channel portable dimmer/pack. Each channel can individually be set to dim or switch as well as accept separate DMX Addresses. For your convenience, each channel can manually be controlled via our simple to use, digital display and function buttons. The Panic function allows you to select desired channels to switch ON constantly via the six dip switch settings. The unit is also supplied with 3 & 5 pin XLR connectors. The aluminum case makes the DP-640B one the lightest portable dimmers of its kind. To optimize performance of this product, please read these instructions carefully to familiarize yourself with the basic operations.