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Measure and cut Tetra LED 

strip to the appropriate 

length for each letter. Cuts 

can be made between any of 

the modules.

Use the double stick tape or 

electrical grade RTV silicone 

to fix LED module within the 

channel letter.

Drill a 1/4-inch (6.4 mm) 

hole near the LED strip and 

grommet the hole for supply 

wire access.

Remove all the debris from the 

inside of the channel letter and 

replace the sign face. 

NOTE: For halo-lit applications LED modules should be mounted on 

UL recognized clear acrylic or polycarbonate. The light output from 

the LED system should be directed back into the sign enclosure. This 

will allow for uniform backlighting of the sign and will provide simple 

mounting.

Before you begin, clean 

surfaces and remove all 

debris from the inside of 

the channel letter.Clean the 

surfaces with a 50:50 mixture 

of isopropyl alcohol (IPA) and 

water and let dry.

Layout Modules

Remove tape backing and stick 

LED modules into place. When 

using tape apply approximately 

15 psi pressure on the module 

(avoid the lens dome surface) for 

5 seconds, full bonding strength 

after 24 hours. Continue until you 

have reached the end of the strip.

Do not 

press lens

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Installation Guide

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