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Aquatic Life Hybrid DX18 T5 Dimmable Light Fixture with LED Mounting System - 24 Inch


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The Aquatic Life DX18 Hybrid Fixture allows you to dim T5HO lighting via third-party controller and pair it with your favorite LED light fixture over your aquarium, giving you more control to cater to your corals and plants lighting needs.  

Throughout many years of the aquatic hobby of growing corals or plants, seasoned hobbyists have realized that a combination of different light types works best over their aquarium. Metal halide lights were once dominant in this field, however, through technology LED fixtures are now the lighting buzz, providing the same high intensity, without the operating cost. Also, like halide lights, LED’s are a point-source light, creating a shimmering effect in the aquarium. Combining LED light with T5HO fluorescent light provides the benefits of efficient intensity and diffused lighting – meaning no more shadows often seen with only LED lights.

Plug your aquarium controller into the 3.5mm female jack to take advantage of the DX18 dimming functions down to 2% dimness.  The dual-channel jack allows a single line to control both channels of lighting: Channel 1 - for lamps 1 & 4, Channel 2 - for lamps 2 & 3. 

The patent pending Aquatic Life Hybrid fixture provides a means for you to combine your preferred LED fixture with controlled T5HO fluorescent lighting. 


  • Pair popular LED fixtures with dimmable T5HO lighting like: AquaIllumination Hydra 26 & Hydra 52, EcoTech Radion XR15w & XR30w, Kessil A360X, A360WE, AP700, and more
  • 0-10 Volt input allows popular controllers, like APEX TM, to adjust the T5HO light intensity
  • The fixture comes assembled. Simply attach the included suspension cables and LED mounting brackets. LED brackets can be positioned where needed and locked into place
  • Optional mounting brackets available for securing your LED fixture
  • Silicone socket end caps protect ends of lamps from moisture and allow lamps to operate at optimal temperature
  • Single power cord for easy setup. Conceal the LED cords in the built-in cord routers at each end of the fixture
  • Reflector design keeps T5HO light inside aquarium
  • Built-in HEP brand dimmable ballasts drive popular T5HO lamps, including ATI and Giesemann
  • Available in 24", 36" and 48" lengths



24" DX18

36" DX18

48" DX18

Dimensions 25.6" x 18 x 1.88" 37.4" x 18 x 1.88" 49.2" x 18 x 1.88"
Weight 11 lbs 13.5 lbs 16.5 lbs
Lamps x Wattage 4 x 24W 4 x 39W 4 x 54W
Controller Input3.5mm Female Jack3.5mm Female Jack3.5mm Female Jack
LED Mounting Brackets Included 1 pair 2 pair 3 pair
Suspension Hardware 1 pair 1 pair1 pair
HEP Ballast Dimming Level 2% - 100% 2% - 100% 2% - 100%
Power ratings 100-277 VAC / 50-60 Hz 100-277 VAC / 50-60 Hz 100-277 VAC / 50-60 Hz
DC Input Rating 0-10 VDC 0-10 VDC 0-10 VDC
DC Input Connector Included 3.5 mm Female Dual Channel Plug 3.5 mm Female Dual Channel Plug 3.5 mm Female Dual Channel Plug
AC Power Cord Length .45 M / 18" .45 M / 18" .45 M / 18"
Wall Plug Cord Length 2.5 m / 7.9` 2.5 m / 7.9` 2.5 m / 7.9`
DC Input Cord Length .9 m / 36" .9 m / 36" .9 m / 36"

Please note the following:

  • A third-party controller is needed to adjust the levels of the DX18 fixture.
  • T5HO bulbs and LED light fixtures sold separately. 
  • The ballast will not turn the lamps completely off, making it necessary to turn the power supply to the fixture when no light is needed.

Product Manuals & Documentation

Aquatic Life Hybrid DX18 T5 Dimmable Light Fixture with LED Mounting System - 24 Inch

Owner's Manual available for download in Adobe PDF file format

Manufacturer Info

AquaticLife Aquarium Supplies
AquaticLife is a Southern California based company that innovates, markets & manufactures premium branded aquarium equipment. AquaticLife products and information are designed to bring the experience of marine life into the home. The company manufactures a variety of aquarium products for both freshwater and saltwater applications. Water quality monitors and testing supplies, water filtration and submersible pumps are just a sampling of what this up-and-coming company offers. AquaticLife is best known for their stylish, powerful and extremely user-friendly light fixtures. They are also recognized for their outstanding customer support and helpful educational materials.

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9 Questions
Displaying questions 1-9
To take advantage of the dimmable utilization, what controller other than Apex would work with this fixture? Is there a cheaper fixture controller?
Asked : Mar 06, 2021
By : nathan, S. Florida
I believe the APEX and GHL controllers are the only ones that will work but, you may want to double check with Aquatic Life.
Answered : Mar 08, 2021
Can a Maspect Razor be mounted to this?
Asked : Nov 20, 2020
By : Brett, Mi, USA
I do not believe this fixture is compatible with the maxspect razor line.
Answered : Nov 23, 2020
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Perfect to supplement my Kessil
Great design. Works perfect.
would like the ability to unplug the power cable at the assembly.
I am using this with a Kessil 360x. I am also using the dimming function on the Apex. Made my Kessil 10x better.
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