ReefBreeders.com
Meridian 45
Meridian 45
5.0 / 5.0
(1) 1 total reviews
Couldn't load pickup availability
Specifications:
- Recommended Mounting Height: 10-14" (25-35cm) above waterline with OHM Balance Optics
- 300watts max power draw
- Case dimensions LxWxH: 44.4" (112.75cm) x 8.5" (22cm) x 1.15" (2.29cm)
- Weight: 11lbs (5.5kg)
- 46.4" (117.85cm) 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: 48 by 24 inches (120 by 60 cm) SPS
- Balance Optics: 60 by 24 inches (150 by 60 cm) Mixed Reef
- Encompass Optics: 60 by 30 inches (150 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.

Share
Upgraded to a new Red Sea 525XL G2+, and bought the Meridian 45 for my mixed reef setup. Had previously used the Photon V2 48” and with this new light the setup was just as simple and the coral colors seem much better. Using the BOT mounts which worked well. Very happy with the upgrade.
Thank you, David! We’re thrilled to hear the Meridian 45 is working so well on your 525XL G2+. That’s a beautiful tank, and it sounds like you’ve got it dialed in perfectly. We’re especially glad to hear the coral colors are popping and that the transition from the Photon V2 was smooth. Appreciate you giving the BOT mounts a try too! Thanks again for the support and for being part of the Reef Breeders community.

Upgraded to a new Red Sea 525XL G2+, and bought the Meridian 45 for my mixed reef setup. Had previously used the Photon V2 48” and with this new light the setup was just as simple and the coral colors seem much better. Using the BOT mounts which worked well. Very happy with the upgrade.
Thank you, David! We’re thrilled to hear the Meridian 45 is working so well on your 525XL G2+. That’s a beautiful tank, and it sounds like you’ve got it dialed in perfectly. We’re especially glad to hear the coral colors are popping and that the transition from the Photon V2 was smooth. Appreciate you giving the BOT mounts a try too! Thanks again for the support and for being part of the Reef Breeders community.