The AS40M is a compact portable 4 channel light dimmer. It has a maximum capacity of 600 Watts per channel and maximum TOTAL load capacity of 2400 Watts. It is supplied with an input power cord which may be connected to a 120 VAC, 20 Amp power circuit. The unit operates using the USITT DMX-512 protocol. The AS40M may be operated in a relay (non-dim) mode. The unit will also function as a stand alone chaser and has eight primary preset chase patterns which may be used. An additional manual operating mode is available which enables the unit to function as a stand alone dimmer with manual control of each channel.