Reef B koralLED 70W Long Term Review Thread

[nautical_nathaniel]

I recently received the koralLED 70W light from Reef B to provide a first-hand review of my experience with the light.

Disclaimer: Reef B sent me this light free of charge but has not instructed me to provide any sort of specific feedback on the light, other than asking for an honest review of the performance on my actual reef aquarium.

Let's get started.

The light came packaged extremely well and showed no signs of damage. It was shipped via Amazon.

I'm replacing an Ecotech Radion XR15 Gen 4 with the Ecotech Mount and the Diffuser. This light is a bit smaller than my old fixture.

The entire light seems to be constructed very well.

The top is mostly aluminum heatsink with a fan in the middle. The one thing that concerns me about the top is that the aluminum heatsink fins are very thin and towards the middle on the left and right side there are fins that are cut to make room for the screws that hold the top and bottom of the light together. Those cutouts are bit sharp and since they're smaller, a bit bendy. I would be concerned about these bending or cutting a finger if the light is going to be handled often (which most lights aren't so I'm personally not too concerned with mine).

The cords that came with the light are thick and sturdy feeling. I would not be concerned about them getting messed up if they were pinched in a cabinet door or something.

The bottom is hard plastic and the cover/lenses for the LED panel is not flimsy at all. Should stand up well to being wiped down from time to time to remove salt spray.

Overall it is a bit smaller than the Radion that I am replacing.

The mounting arm is fully metal except for the parts that come close to the water which are plastic.

The bottom portion of the vertical arm of the mount attaches to the tension block facing away from the tank, so the screws shouldn't get much exposure to salt water but should probably still be checked from time to time for any corrosion.

The horizontal arm is adjustable where it meets the vertical arm. The light is also adjustable when mounted to the horizontal arm and can slide along the entire length of the arm.

Overall I felt like it was easy to setup the mount and adjust the height and spacing of the light, much easier than the Radion mount it is replacing.

Overall setup was straight forward. I downloaded the app, gave it the permissions it asked for (which for some reason included location, I'm assuming for time zone settings), and the app did a great job of finding the light and connecting. After having several other lights in the past that wouldn't connect after several reset cycles, this was a breath of fresh air!

I'm still working on a spectrum and schedule for the light, but for the most part it is pretty simple to program. We'll see how well it maintains it's programming as I've had lights in the past that randomly revert back to their default settings after a month or when the power flickers.

This is just my initial impressions of the light and I'll be sure to update this thread as time goes along.

So far my corals and anemones seem to like it. I have it over my Anemone, Mushroom, and Zoanthid tank which is a Waterbox 20 AIO.

Photos taken with a Samsung Galaxy S26 Ultra in Pro mode with the white balance cranked up to counteract the actinic lighting (like using a reef lens filter).

Let me know if you have any questions. If you also have this light, feel free to add your experiences as well

 

[mfinn]

Most of us are acquainted with how blue some of the Radion programs can be. Not sure what yours was.
My question is how does the koralLED 70W light and the program you set up compare?

Bluetooth or wifi?

 

[PPBlimpy]

Great write up. I just recieved the same light for testing and have similar feeling. Great bang for the buck light!

I swapped a pair of the koralLed in place of a pair of noopsyche K7 over my 54g corner tank.

How is your tank doing? Its been less then 24hrs at this point for me but everything is happy. Curious when i get home today how everything looks.

 

[PPBlimpy]

Most of us are acquainted with how blue some of the Radion programs can be. Not sure what yours was.
My question is how does the koralLED 70W light and the program you set up compare?

Bluetooth or wifi?

They are Bluetooth. After dealing with Wifi with radions and noops these were a breeze

 

[nautical_nathaniel]

Most of us are acquainted with how blue some of the Radion programs can be. Not sure what yours was.
My question is how does the koralLED 70W light and the program you set up compare?

Bluetooth or wifi?

I've been meaning to do a writeup on my copycat program from my Radion. As far as setup goes, it's very straightforward and about as simple as it gets. The Bluetooth can be a bit slow but it has connected every time I've asked it to.

 

[nautical_nathaniel]

Here is the breakdown of my current programming for the koralLED. I used a spreadsheet to "convert" the schedule of my Radion XR15 to the format used for the koralLED. The Radion XR15 was running the Leah's 20 Gallon preset from WWC.

Since the Radion uses a point intensity and a channel intensity, I applied the Radion point intensity as a percentage of the Radion channel intensity to get the value for the koralLED. (kLED 8:13 UV = Radion 8:13 UV x 0.8)

I will say this is probably a good way to get a ballpark program but probably does not match the Radion completely since I did not account for the diodes per channel and their individual outputs.

It's also a plus that the koralLED has the same channel designations as the Radion. Even if they don't match perfectly it was easier to convert from one light to the other. I've had other lights in the past that have mixed channels or 1-2 less than a Radion, that would have made things a bit trickier.

Here are some recent pics of my corals under the koralLED:

Overall, I'm still very impressed with this little light. Most of my corals seem to like it (I have some yuma mushrooms being a little dramatic about transitioning to their new home) and it is very simple to setup and use.

I was hit by Hurricane Isaias and was without power for 5 days. I used a Jackery battery backup that I charged with the generator and when I plugged in the light it was pulling 15-20 watts according to the Jackery.

Let me know if you all have any questions about my experience with this light!