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Meridian 24
Meridian 24
5.0 / 5.0
(1) 1 total reviews
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Specifications:
- Recommended Mounting Height: 10-14" (25-35cm) above waterline with OHM Balance Optics
- 150watts max power draw
- Case dimensions LxWxH: 23.75" (60cm) x 8.5" (22cm) x 1.15" (2.29cm)
- Weight: 5.9lbs (2.7kg)
- 25.75" (65cm) long including plug and antenna cover
- 1.4" (3.56cm) case height including screws, bolts, and fan cover.
- 2 year warranty on light, 1 year on power supply
Coverage Area:
- Balance Optics: 24 by 24 inches (60 by 60 cm) SPS
- Balance Optics: 36 by 24 inches (90 by 60 cm) Mixed Reef
- Encompass Optics: 36 by 30 inches (90 by 75 cm) Mixed Reef
Introducing the ReefBreeders Meridian Series:
The Meridian was created with a focused purpose: to give reef keepers the strongest growth, the strongest color, and the cleanest overall look that modern lighting can offer. Most users immediately notice that their aquarium appears clearer and easier to see, almost as if the tank has shifted into true high-definition. Coral edges become more defined, natural textures become visible, and the entire reef looks sharper from every viewing angle.
Real Coral Response
Coral results are often dramatic. Many hobbyists see colonies grow faster, long-term slow growers begin putting on new tissue quickly, frags heal faster, and corals produce colors they had never seen under previous lighting. Most aquaculture operations report major improvements within three months, often including completely new growth patterns and color expression.
The Spectrum That Drives It
The Meridian achieves this through an extended violet range from 400 nm through 440 nm, including true 440 nm indigo LEDs. These wavelengths support rapid tissue recovery, strong color development, and steady growth that limited-spectrum fixtures struggle to provide.
Efficiency That Pays for Itself
The Meridian is extremely energy efficient. In real-world comparisons with leading competitors, it has produced roughly 50 percent more PAR while using roughly 50 percent less electricity. This results in higher performance with noticeably lower energy costs.
Modular and Expandable
Multiple Meridians and Edge bars can run from one power supply, supporting up to six hundred watts of combined output while reducing outlet use and cable clutter. The system grows effortlessly as the reef grows.
Flexible Installation
The Meridian can be suspended, mounted to the back or sides of the aquarium, or integrated into a T track system. The Integrated Connection System links fixtures end to end, and Edge Articulating Mounts allow precise adjustments for complete coverage.
Precision Optics
The Ocular Holo Matrix optic system offers three optical profiles suited for different tank depths and aquascapes.
Simple and Reliable Control
The ReefBreeders app provides cloud based WiFi access, Bluetooth allows quick local adjustments, and the optional Manual Controller offers direct on-device control with smooth sunrise and sunset transitions.
Built for the Long Term
The Meridian is built for long-term reliability and long-term support. For reef keepers who want stronger growth, deeper color, clearer detail, and an energy efficient light that lowers electricity costs, the Meridian delivers that experience with confidence.
Specifications Continued:
- 1 power input and 1 power output port for daisy chaining (larger power supply and cables required)
- Adjustable M6x1.0mm bolts on top of case
- Note: Mounting Hardware like side legs, back of tank mounts, and hanging wires sold separately.
- Front and rear tracks for mounting edge bars
- Port on top of light case for attaching manual controller
- 2.4GHz wifi control (bluetooth available soon) via ReefBreeders app
Original LED Layout:
Designed with a high white to blue color ratio, based on the most popular lighting schedules created by Photon users. The original layout has a 20K blue look with all channels equal, and has 2 additional 440nm indigo LEDs on a dedicated control channel, for a total of 4 (vs. 2 x 440nm in the 14K layout).

Shallow Reef LED Layout:
The Shallow Reef LED layout differs from the original spectrum by doubling the number of white LEDs for a more natural, shallow-water reef look. In addition, the 3.5K warm white LEDs are split off from the 5.5K neutral whites. This allows for more color tone adjustment, for example the warm white LEDs can be turned up for a warmer look, or the cool whites for a crisp appearance.

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Meridian 24 first impression.....WOW! As promised, no plastics in the packaging, obvious quality, sturdy yet sleek, beautiful design, and impressive output. There is perfect spacing within the LED clusters and between the two groups in the Meridian 24. There are powerful and numerous LEDs in the near violet range, and the blues....wow. The 3.5K and the 5.5k LEDs are so nice. What a quality light! The app functioned perfectly and is very user-friendly. I was able to choose a practice schedule from the
community tab with a few clicks. I was then able to setup a custom schedule to mimic the modified Saxby Schedule I was running on my old lights, which will be no problem at all. I can add as many segments as I want to each of the channels. AWESOME! I took some par measurements, and this light is powerful. My max peak is only at about 45% overall intensity, and I am hitting 300 par in between the lights, and 250 plus under each light. I am even getting some solid par way off to the sides of the lights for my light sensitive corals. The stock balance lenses are great, with zero light spill. They are in a hybrid fixture mounted 11 inches above the water and work great. If I was able to mount them higher as recommended, I could certainly have gotten more spread. My corals look great one week in and my color pop is amazing lately in my cycle. I can run heavy whites at midday, then heavy blues at night. Amazing lights.
Hey Frank,
Thanks so much for the thoughtful and detailed review! We’re thrilled to hear you’re loving the Meridian 24 right out of the box. It's great to see you noticed the little things like the plastic free packaging and LED spacing. Those details really matter to us. Sounds like you’ve already dialed in an awesome custom schedule, and we’re glad the app made that process smooth. Also really appreciate you sharing those PAR numbers, super helpful for others in the community!
Keep us posted on how things progress, and don’t hesitate to reach out if you ever need anything.
-Logan from ReefBreeders

Meridian 24 first impression.....WOW! As promised, no plastics in the packaging, obvious quality, sturdy yet sleek, beautiful design, and impressive output. There is perfect spacing within the LED clusters and between the two groups in the Meridian 24. There are powerful and numerous LEDs in the near violet range, and the blues....wow. The 3.5K and the 5.5k LEDs are so nice. What a quality light! The app functioned perfectly and is very user-friendly. I was able to choose a practice schedule from the
community tab with a few clicks. I was then able to setup a custom schedule to mimic the modified Saxby Schedule I was running on my old lights, which will be no problem at all. I can add as many segments as I want to each of the channels. AWESOME! I took some par measurements, and this light is powerful. My max peak is only at about 45% overall intensity, and I am hitting 300 par in between the lights, and 250 plus under each light. I am even getting some solid par way off to the sides of the lights for my light sensitive corals. The stock balance lenses are great, with zero light spill. They are in a hybrid fixture mounted 11 inches above the water and work great. If I was able to mount them higher as recommended, I could certainly have gotten more spread. My corals look great one week in and my color pop is amazing lately in my cycle. I can run heavy whites at midday, then heavy blues at night. Amazing lights.
Hey Frank,
Thanks so much for the thoughtful and detailed review! We’re thrilled to hear you’re loving the Meridian 24 right out of the box. It's great to see you noticed the little things like the plastic free packaging and LED spacing. Those details really matter to us. Sounds like you’ve already dialed in an awesome custom schedule, and we’re glad the app made that process smooth. Also really appreciate you sharing those PAR numbers, super helpful for others in the community!
Keep us posted on how things progress, and don’t hesitate to reach out if you ever need anything.
-Logan from ReefBreeders