The U `King Two-Bar RGBW Spider Light fixtures, Standard Fixture ID 065, are available from Amazon (ASIN B081H833BG) for less than USD $100.
Figure 1 – U `King Two-Bar RGBW Spider Light
The fixtures have 7 channel and 15 channel options, which you can select from the fixture’s DMX panel. Effects in Finale 3D are compatible only with the 15 channel mode.
Table 1 – DMX personality choices
| DMX personality (“DMX Channel Mode”) | Supported in Finale 3D |
| 7CH | NO |
| 15CH | YES |
Instructions
To design a show for U `King Two-Bar RGBW Spider Light 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 15-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 15-channel fixtures in a DMX universe
| Fixture | DMX Channel Base | Channels Used |
| 1 | 1 | 1-15 |
| 2 | 16 | 16-30 |
| 3 | 31 | 31-45 |
| 4 | 46 | 46-60 |
| 5 | 61 | 61-75 |
| 6 | 76 | 76-90 |
| … | ||
| 34 | 496 | 496-510 |
Technical details
The following tables show the technical specifications of the fixtures, as tested by the Finale support team.
Table 3 – DMX channels for 15CH personality
| DMX Channel | Meaning |
| Channel 1 (DMX Channel Base + 0) | Bar 1 Angle (0 = aiming outward; 255 = aiming across center about 45°) |
| Channel 2 (DMX Channel Base + 1) | Bar 2 Angle (0 = aiming outward; 255 = aiming across center about 45°) |
| Channel 3 (DMX Channel Base + 2) | Master Dimmer |
| Channel 4 (DMX Channel Base + 3) | Strobe (0 = OFF, 1-255 = slow to fast) |
| Channel 5 (DMX Channel Base + 4) | Bar 1 Head 1 (Red) |
| Channel 6 (DMX Channel Base + 5) | Bar 1 Head 2 (Green) |
| Channel 7 (DMX Channel Base + 6) | Bar 1 Head 3 (Blue) |
| Channel 8 (DMX Channel Base + 7) | Bar 1 Head 4 (White) |
| Channel 9 (DMX Channel Base + 8) | Bar 2 Head 1 (Red) |
| Channel 10 (DMX Channel Base + 9) | Bar 2 Head 2 (Green) |
| Channel 11 (DMX Channel Base + 10) | Bar 2 Head 3 (Blue) |
| Channel 12 (DMX Channel Base + 11) | Bar 2 Head 4 (White) |
| Channel 13 (DMX Channel Base + 12) | Program Number (0-7 = no program; 8-255 = predefined programs) |
| Channel 14 (DMX Channel Base + 13) | Program Speed (slow to fast) |
| Channel 15 (DMX Channel Base + 14) | Reset (hold 5 seconds to reset) |
The U `King Two-Bar RGBW Spider Light fixtures do not have adjustable motor speed. The bars rotate at about 300°/sec. If you are exporting a script from Finale 3D to a firing system or controller that uses motor speed to adjust the speed of an angle sweep, you need to leave enough time between the “Move-In-Black” effect and the “Move-To” effect for the bar to rotate.
Table 4 – Example files and downloads
| Download link | Explanation |
| spider-user-manual.pdf | U `King Two-Bar RGBW Spider Light User Manual |