These are some classic first generation scanners from COEF!! These are circa early 90's and are truly powerful units. Each unit features a 100 volt, 1200 watt Osram dual ended HMI lamp that sits behind a very high quality optic system. The units are 220 volt operation and will work with DMX, RS232/423 PMX (Older Martin and Pulsar Protocol) and 0 - 10 volt analogue. The unit uses 5 channels of signal for operation. Ch 1 is dichoric color (7 + Open White), Ch 2 is gobo selection (5 + 5 and open from 2 different wheels), Ch 3 is blackout / shutter / strobe, Ch 4 is scan mirror pan, and Ch 5 is scan mirror tilt. Since this unit uses such a high power lamp it uses 4 (yes 4) high velocity cooling fans to keep the lamp stable. 2 pull air in and 2 blow it out. Unit are made in Italy. Currently being refurbished. These units will be for sale!!