Prime Flex Arm - 18 Inch

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The Aqua Illumination Prime Flex Arm was designed to exclusively work with AI Prime LED lights. The mount is very robust, and adaptable allowing you to use the Flex Arm on any type of aquarium rim up to 1.20" (30mm). The flexible portion of the arm has a silicone coating allowing easy cleaning while protecting it from moisture.

The included set screw system allows you to twist the arm within the base letting you fully secure your Prime LED to the screw attachment point. After your Prime has been snugged to the Flex Arm, you can loosen the set screw located within the base and twist the arm until it is perfectly flat, then tighten the set screw (do not over tighten the set screw, hand tighten only).

One of the biggest issues with mounting lights can be wire management, and the Flex Arm even has that covered, supplying clips that can attach directly to the Flex Arm and secure the power cord for the Prime LED, keeping things neat and clean.

  • Easy Installation
  • Wire management clips
  • Soft coated arm
  • Compatible with Rimmed or Rimless tanks up to 1.20" (30mm)


Flexible Arm Length - 19"

Total Overall Length - 22"


Whats Included

1x 18" Flex Arm

1x Base Screw

1x Base Plug

3x Cable Routing Clips

1x Allen Wrench

1x Base Mounting Gasket


Note: When installing the Flex Arm do not adjust the arm while it is mounted to the rim of any tank. Excess force from adjustments may put excess stress on the glass or acrylic.

More Information
UPC 019962474538
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Product Questions

What is the diameter of the flex arm? What thread size is at the bottom of the arm which screws into the mounting clip/clamp?
Question by: Jim Anderson on Mar 4, 2023, 8:50 AM
The diameter of the flex arm is 14mm and the threads are 10-32.
Answer by: William Reed (BRS Staff) on Mar 23, 2023, 3:38 PM
Do these mounts work with just rimless tanks? Or can it turn and be used to mount on a Eurobrace as well?
Question by: Mike on Mar 16, 2022, 11:31 AM
Hey there,
Thank you for reaching out to us. This is Compatible with Rimmed or Rimless tanks up to 1.20"
Answer by: Matt Lucero (BRS Staff) on Mar 18, 2022, 10:23 AM
Does this work with the prime HD model as well?
Question by: Hoss on Jun 25, 2016, 1:36 AM
Absolutely. The mounts are identical.
Answer by: Connor on Jun 29, 2016, 5:42 PM