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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

Electrical Connections

NOTE: Do not use connectors pre-filled with silicone grease/mineral base protective grease or use silicone grease to seal connections.

Cap wires

Optional: Cut wires flush

Must cap all exposed wires with appropriate wire 

connectors and seal with electrical grade RTV silicone. 

Optional: Cut wires flush to the module and seal with 

electrical grade RTV silicone.

Connect LED strips using in-line (IDC) connectors or 

twist-on wire connectors.
NOTE: Seal all connections in wet locations with 

electrical grade RTV silicone.

Red stripe (+)

White (-)

Seal all connections in wet locations 

with electrical grade RTV silicone

2

5

1

4

3

6

1

2

Tetra

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Installation Guide

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