Software Documentation

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Light FixturesDocumentation

Intermediate Last updated: November 8, 2021

7 Cobra 36x1W RGB Par Light

The Cobra 36x1W RGB Par fixtures are inexpensive and easy to use 36 LED DMX par light fixtures, model number LIGHT-DMX-PAR-36 from Cobra and QS-056P from the manufacturer.  These fixtures are compatible with the EasyDancing fixture described in EasyDancing 36x1W RGB Par Light.


Figure 1 – Cobra 36x1W RGB Par


The fixtures have a 7-channel DMX personality.


Table 1 – DMX personality choices

DMX personality (“DMX Channel Mode”) Supported in Finale 3D



To design a show for Cobra fixtures, please follow the steps in DMX basic instructions and Light fixtures basic instructions.  If you don’t already have a compatible firing system or controller capable exporting a DMX script, please refer to Supported firing systems and controllers (DMX) for the list of available hardware options.


Choosing the DMX channel ranges for fixtures

Each fixture requires multiple channels, so if you are putting multiple fixtures in the same DMX Universe, you need to set the Start Address on the fixture in the real world and the corresponding DMX Channel Base on the fixture in Finale 3D to a range of channels that doesn’t overlap with others.  A DMX universe has channels 1-512.  If you want to pack as many fixtures into the 512 channels of a DMX universe as you can, back-to-back ranges are the most efficient.  Table 2 shows an example for 7-channel fixtures.  Some DMX firing systems and controllers only support 50 or 100 channels, so you may not have all 512 channels to work with.


Table 2 – Example channel ranges for 7-channel fixtures in a DMX universe

Fixture DMX Channel Base Channels Used
1 1 1-7
2 8 8-14
3 15 15-21
4 22 22-28
5 29 29-35
6 36 36-42
7 43 43-49
8 50 50-56
9 57 57-63
10 64 64-70
73 505 505-512


Technical details

The following tables show the technical specifications of the fixtures, as tested by the Finale support team.


Table 3 – DMX channels for 7CH personality

DMX Channel Meaning
Channel 1 (DMX Channel Base + 0) Dimmer
Channel 2 (DMX Channel Base + 1) Red
Channel 3 (DMX Channel Base + 2) Green
Channel 4 (DMX Channel Base + 3) Blue
Channel 5 (DMX Channel Base + 4) Strobe (0-7 = no strobe; 8-255 = slow to fast)
Channel 6 (DMX Channel Base + 5) Set to zero
Channel 7 (DMX Channel Base + 6) Set to zero



Table 4 – Example files and downloads

Download link Explanation
DMX LED Digital Display Par Lighting Instructions.pdf Cobra 36x1W RGB Par User Manual