EXT Rails - Black - Aqua Illumination

Aqua Illumination EXT Rails
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  • Aqua Illumination EXT Rails
  • Aqua Illumination EXT Rails
  • Aqua Illumination EXT Rails

Quick Overview

Aqua Illumination EXT Rails for mounting or hanging your AI Sol, AI Vega or AI Hydra HD LED Light. Connect, mount and hang one or multiple lights together with these versatile rails. Use with the Aqua Illumination Hanging Kit.

Available in 6", 12" or 18"

  • Quick Overview

Aqua Illumination EXT Rails for mounting or hanging your AI Sol, AI Vega or AI Hydra HD LED Light. Connect, mount and hang one or multiple lights together with these versatile rails. Use with the Aqua Illumination Hanging Kit.

Available in 6", 12" or 18"

EXT Rails - Black - Aqua Illumination

100% Recommend this to a friend (8 of 8)

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Choose a size

6" Black EXT Rail
SKU: 204364

reg. $24.99

Special Price: $22.49

12" Black EXT Rail
SKU: 204365

reg. $29.99

Special Price: $26.99

18" Black EXT Rail
SKU: 204366

reg. $34.99

Special Price: $31.49


Availability: In stock


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Product Questions

I have a 4ft. long 75 gallon reef that I want to put 2 vegas over. How big of a rail do I need to get coverage? The website says that the vegas have a 2ft x 2ft spread. can I just but them up or should I space them out evenly? Thanks in advance.
Question by: Jonathon on Jan 26, 2016 3:24:00 PM
Great question!
If mounting across the 4' section of the tank you can use the 18" for comfortable spacing between the lights! Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 3, 2016 3:05:00 PM
Looking at getting the Hydra 26. If I am understanding correctly, one needs to buy the light, the hanging mount, AND and extension rail? Hoping I do not need the extension rail as it is out of reach for me, but the light and hanging mount are right within budget at the moment!

Looking at the reviews, it seems the extension rails are used for multiple units and provides the benefit of transforming this into a modular system, not just for a single light? Any feedback is appreciated.
Question by: Zach Jones on Sep 17, 2015 7:36:00 PM
Great question!
You will want to contact AI to find out if the wire kit itself can be used. The Wire kit will not have an ability to connect directly to the light without a few components from a local hardware store, However the EXT rail will be required for immediate installation. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Sep 18, 2015 3:40:00 PM
Is each rail sold separately or in pairs of two?
Question by: Susana on Jan 9, 2017 11:52:00 AM
Great question! The EXT Rails are sold individually. :-)
Answer by: Randy (Admin) on Jan 10, 2017 11:58:00 AM
I wanted to mount 2 hydra 52 to a 48 inch wide tank parallel to the width of the tank. what parts would I need to achieve this. Thanks in advance
Question by: steve on Mar 25, 2016 11:25:00 AM
Great question!
You will need the 48" classic mount listed below. This will allow for you to mount the AI 52 front to back. For parallel mounting unfortunately you will need a separate component from AI to cross the mount. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 25, 2016 12:06:00 PM

Full Details

Aqua Illumination EXT rails are one of AI's most versatile pieces in their mounting system. Compatible with the Hydra HD series, Vega LED and Sol LED lighting systems, these rails can be used to connect, mount and hang single or multiple lights together.


Rails come in 6", 12" and 18" lengths and are made from extruded aluminum available in silver or black.


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8 Items

  • Good enough. By It's a rail, alright. on 9/15/2015

    They fit my AI26s perfectly and are very stable.
  • perfect solution for custom mounting By Heather on 8/7/2015

    These worked great for mounting in our open top canopy.
  • An excellent way to join 3 hydra lights to a 6 foot tank By Ash on 8/20/2014

    I put these in with 3 hydra 52's (3 18 inch rails) which worked perfectly for the spacing in my tank. I have a bowfront and it places the lights in perfect distance from eachother over the top of the tank.

    The rails are lightweight and solid. Make sure that if you use the 18 inch rails with 3 lights that your supporting it with the hanging kit from both ends, and not just the middle as the rails will slightly bow.
  • They work - but beware of a few things! Actual dimensions for one.. By Sean on 5/30/2014

    Generally speaking the fit into the channels on the top of my Vega fixtures is very good, a neat mounting solution. Two set screws per end to tighten down on the heatsink make it feel like a secure hold, and inspires confidence. Includes allen wrench to do this, and they go together rapidly. (Oddly, the 12-inch I ordered did not have the allen wrench, but the two 16 inch ones did). They are aluminum and seem to aid in heat dissipation by virtue of connecting to the heatsink and adding to heat dissipation area.

    Some Problem Areas:

    Cost - Though these exude quality, I think the price on these sections of aluminum are a bit on the high side.

    First and foremost - advertised length - DOES NOT correspond to the spacing you will receive between fixtures. For example, I bought the 12-inch supposing I would get 12 inches between fixtures, enough to position the two fixtures far enough apart that none of the LEDs would be going through the large, not-transparent, glass center brace of my Oceanic RR tank. Count on losing 2-2.5" PER END when properly mounted per manufacture instruction. So the distance will be 4-5" LESS than you are expecting. I would suspect the 6-inch would put two fixtures fairly close to butting together. This was of particular trouble to me because I was aiming to mount the ends of the resulting assembly in my canopy.

    Second - building on the previous point, KNOW what you are ordering and what the net length will wind up being. Once you know that, start over and do it again. Getting this wrong will cost you. BRS' policies will not allow return of opened or used items, so you are not able to return these once you open and "dry fit" them and realize there may be an issue with your overall plans vs. what the actual yield in length. I try to be loyal to BRS, but return policies on certain things (like this) become costly. Obviously 90% of stuff you know what you are ordering (sediment/carbon/RO membranes), and returning is never a problem since it's hard to get that wrong. But on items and situations like this, it becomes a lot of money that isn't refundable, quickly.

    Third - there should be something in description stating net distance between the two fixtures linked by the various lengths.
  • These are sweet. By Doug on 3/9/2014

    These EXT rails are sweet. They're totally solid and are the best way to secure your A.I. lights. You can connect your lights together or saw these to fit, drill holes and screw them into your hood. They're aluminum so they won't corrode.
  • Dont bother with anything else By Bill K on 7/2/2013

    Very easy to install everything lines up perfect no headaches
  • Easy to install By Ryan on 4/9/2013

    Love the look of two lights joined with this Ext Rail. Very easy to install and comes with the tool.
  • Sleek Design By Brandon on 4/5/2013

    These EXT Rails feel very strong and sturdy. They maintain the clean sleek appearance of the AI light fixture. The option to easily adjust the distance between lights without having to re-hang everything is a great for expanding your system.