TECHNICAL INFO 2048 DMX channels, DMX512/1990 standard, Output port with optical isolated. Up to 240 intelligent Fixtures or 240 Dimmer may be connected. Up to 42 channels each Fixture. Fixture Library mode, \"pearl” Fixture Library compatible. 600 Playback program, 200 Group, 210 Preset, 100 Snapshot. Shape track control is provided to control such effects as circles, lines and dimmer effect, etc. Chase trigger mode selectable: Auto1, Auto2, Music synchronously and MIDI. USB port is provided. USB-disk can record the data of controller, Controller can be upgraded through the USB port. 1 VGA port, user can connect it to the colorful CRT or LCD displays (OPTIONAL). LCD display with backlight. 12V accessory operate light (OPTIONAL). Power supply: AC 110-240V / 50-60Hz Size: 730mm x 540mm x 140mm