SKU: 89822478925

Red Sea ReefLED 50 / Arm Mount

Sale price$157.50 Regular price$175.00
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

Red Sea ReefLED 50 / Arm MountReef safe PAR distribution ReefLED is Reef safe as it provides ideal PAR values throughout the aquarium, without hotspots or areas with insufficient light for coral growth. The PAR distribution map shows the actual PAR levels as they vary throughout the cross section of the aquarium. ReefLED Programs PAR vs. PUR Using PAR measurements only to determine light quality or compatibility of a specific light unit for coral photobiology can be misleading.

Reef-safe PAR distribution

ReefLED is Reef-safe as it provides ideal PAR values throughout the aquarium, without hotspots or areas with insufficient light for coral growth. The PAR distribution map shows the actual PAR levels as they vary throughout the cross-section of the aquarium.


ReefLED Programs | PAR vs. PUR

Using PAR measurements only to determine light quality or compatibility of a specific light unit for coral photobiology can be misleading. The PAR measurement was developed to measure the Photosynthetic Active Radiation of plants that is within the visible light region (400 -700 nm).

 

The Photosynthetic Utilized Radiation or PUR that is relevant for optimal Zooxanthellae photosynthesis is between 360- 480 nm which starts outside the range of visible light (measured by PAR meters) in the UV region and continues into the blue part of the visible light range.

 


PUR cannot be measured directly but must be calculated by isolating the PUR wavelength intensity data for each wavelength from radio-spectrometer analysis.

 

The REEF-SPEC Blue channel of the ReefLED is 100% PUR so for this channel the PUR will actually be slightly higher than the measured PAR due to the UV wavelengths that the PAR meter cannot detect.

 

The 8000K White of the ReefLED has a strong blue peak in the PUR spectrum as well as wavelengths across the whole visible light spectrum and therefore has a PUR of 45% of its PAR.

 

The actual PUR output of the ReefLED will vary according to the combined settings of the Reef-Spec Blue and White channels.


ReefLED 50 specifications

Recommended usage by tank size

ReefBeat app

  • One interface for all of Red Sea’s smart devices.
  • Easy set-up and operation.
  • On-line monitoring and notifications.

App features

 

A universal mounting arm attaches firmly onto the rear wall of the tank and can be rotated from side to side during reefscaping or other tank maintenance. Suitable for tank widths from 36-51cm / 14″ – 20″ with glass thickness of 8-15mm.

Shipping Notes
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 89822478925

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Melissa Porter
Draper, US
★★★★★ 5
Matcha Obsessed
Flavor Name: Culinary Matcha-3.53oz
This matcha blends well with fresh steeped purified water. It's brightness is fascinating and delicious. It's soothing. Follow the recommended amounts precisely.
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Reviewed in the United States on January 8, 2026
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Cate
West Palm Beach, US
★★★★★ 5
Great matcha
Flavor Name: Culinary Matcha-3.53oz
Robust, fine quality, lovely clean taste.
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Reviewed in the United States on January 2, 2026
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Victoria Palmer
Cuba, US
★★★★★ 1
Not ver good!
Flavor Name: Culinary Matcha-3.53oz
Taste is like grass.
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Reviewed in the United States on December 27, 2025
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Amazon Customer
Belleville, US
★★★★★ 5
All things Matcha
Flavor Name: Culinary Matcha-3.53oz
I bought this for my grand daughter. She is all things matcha. Was what I expected and arrived on time! Thank you!
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Reviewed in the United States on January 25, 2026
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D
Grantham, US
★★★★★ 5
Great scale that needs some improvements to be perfect
Color: White, Color: White
Very accurate scale, looks good in white, timer works nicely and I do like the concept of the ratio conversion. Shown in photos with 0 measurement drift over time, even without the silicone mat. To make this the best scale in the price range, I would change: - The auto timer function. Timing currently stops if you pick up the brew to swirl; you must completely restart the process if you do happen to pick it up. I would change that to only stop on user input (pressing a button). - The ratio conversion. Why offer XX.0 precision if you can only change the ratio in whole amounts? I'd suggest offering 0.1 increments, selectable with +/- buttons instead of cycling through. - The silicone mat is not well affixed and slides around. Kind of useless as-is and I just keep it off. I would wrap the whole thing around the measurement platform, similar to how the Greater Goods scale does it, to really keep it secure. It's not perfect, but for the price, it's a 4.5/5 for me. Rounding up to 5 since a 4 is considered "bad" by today's online rating standards.
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Reviewed in the United States on December 22, 2025

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