LED modules for signage illumination, channel letters, signs, lightboxes

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  • How to take the LED modules out of the tray?
  • LED illumination for channel letters installation guide
  • Notes on LED modules and power supplies
  • Troubleshooting

LED modules troubleshooting

Entire sign or leg with LED Modules does not light after complete installation.

Check the connection from the power supply lead to the first LED Module. Make sure the polarity of the connections made at the power supply lead and any jumper wire is correct.

Still does not light.

Using a volt meter check the output voltage of the power supply. The output voltage should be 12.0VDC +or- 0.5VDC. If there is no output voltage, have a licensed electrician check input voltage. Make sure the power supply is hooked up correctly and getting primary power. If the power supply is hooked up correctly and getting primary power and there is still no output voltage, replace the power supply with a new one.

The beginning of a LED Module leg lights, but the entire leg does not light or lights intermittently.

The primary cause of a portion of a LED Module leg not lighting or lighting intermittently is a bad connection between the modules that light and the modules that don’t light. Check this connection.

One LED Module does not light, but all others in the leg light.

LED Modules are designed so if one module fails, it will not cause the entire sign or leg to go out. If one LED Module is not lighting, but all others in the leg are lighting, replace the module with a new one.