Moving head lights may be controlled by a lot of different means. The fixtures are connected to a lighting board, providing a control signal. The signal sent by the latest to the moving head lights may be in three ways - Analogue (applied in the old days), DMX (the regular control protocol) or Ethernet control. After being received, the signal is transmitted into internal ones, which are sent to the motors located inside the devices.
Units using analogue control are remaining in the past and are not well-liked today. The factors for this are quite a few - restrictions on bandwidth, signal transfer rates and possible errors - being just a few of them. The regular procedure for operating moving heads fixtures is the DMX protocol, typically using separate twisted pair, shielded wire and 3 or 5 pin XLR connectors at the ends of it. Each single moving head unit is assigned to a certain range of DMX channels (the DMX protocol supports up to 512 distinct channels). The lighting controller assigns the signal on these channels, and the moving head DMX reacts according to the signal it receives - this could possibly be values for colour, style, cycle velocity or also moving images. All the effects are pre-programmed. Moving heads DMX are more tough to be set up in contrast to their analogue version because every single unit has more characteristics to be set. A regular lighting fixture has just one channel for operation - intensity of the light. At the same time, a moving head DMX may have over 20.
There exist 2 basic products that may be found on the market for managing the various channels on several moving head lights: lighting boards and DMX software. Though lighting boards still remain applied, a lot of folks prefer the DMX software to manage their lighting systems. One of the most important positive aspects of the DMX software is the simple fact that they offer a rendered preview of the final result, so folks can improvise on their light schemes and performances and they know what to expect from it, without even coming into the disco or the nightclub before. Another benefit is the chance of converting a computer's USB output to a DMX one.
The most recent types of moving head lights use RJ-45 for data transmitting, simply because the Ethernet link assists for the better management of a significantly bigger number and more complex effects. Quite a few of the moving head fixtures have the option for digital projection, and they can form a strong mixture of lighting and video images. These new types of devices don't just need intensity, position and focus management, but will need video content management as well.
In conclusion, being able to direct moving head lights to different points in space or create beautiful pictures in the air is an effective weapon in your arsenal if searching for impressive light performances. Moving head fixtures play a main role for the triumph of any nightclub, bar or disco.
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