The brand new ceiling light Reef Flare S in our DaniReef LAB

How to value these numbers in aquarium?

This is a good question. At first we thought that we could transport these values to the aquarium tout-court. Than we filled the aquarium, insert the probe and redone the measurements. We fazed but, as we have already said in elsewhere, we’re going to talk about this in another article. Basically, while at 20 cm the result is practically the same, as we progressed, thanks to the glass and the water itself reflecting the light, we found even the double of the values measured in air. Obviously this isn’t a detail that can be standardized, so we think that our method of calculation is the most correct, and the best for the comparison of coverages of different ceiling lights.


The measurement of the consumption was made possible thanks to the useful device RCE PM600 that can also measure the Cos(fi) (or power factor). The result is already given in watt.

La nuovissima plafoniera Reef Flare S nel DaniReef LAB

Here above there’s the maximum power and below the Cos(fi).

La nuovissima plafoniera Reef Flare S nel DaniReef LAB

The calculus of the absorbed current, that is the power, is the following one:

Ceiling lights Reef Flare S: 65,04 watt. Considering that 17 cm the ceiling light has at the middle 623 μmol m-2 s-1, we can guess that it will have a peak value of 9,58 μmol m-2 s-1 w-1 (PAR per watt).

The value is slightly lower than the declared 70 watt, and allegedly this depends on the system of vents, but it’s higher than what declared on the box, that’s 54 watt.

The comparison with other ceiling lights on the market

Recently we started to use the new Apogee’s Quantum Meter MQ-510.

AI Hydra 32 HD at 17 cm560.00043090,501.3036.190
AI Hydra 32 HD at 37 cm563.00043090,501.3106.224
AI Hydra 32 HD at 57 cm463.00043090,501.0765.112
Aqamai LRM at 17 cm643.00046590,881.3827.071
Aqamai LRM at 37 cm722.00046590,881.5527.941
Aqamai LRM at 57 cm616.00046590,881.3266.783
Aqamai LRS at 17 cm276.00028947,599555.797
Aqamai LRS at 37 cm312.00028947,591.0786.547
Aqamai LRS at 57 cm254.00028947,598805.343
ATI Straton at 17 cm2.018.2328902112.2689.565
ATI Straton at 37 cm1.409.5958902111.5846.681
ATI Straton at 57 cm957.2098902111.0764.537
Cetus 2 at 17 cm410.00021560,681.9066.756
Cetus 2 at 37 cm291.00021560,681.3534.793
Cetus 2 at 57 cm174.00021560,688072.861
Ecotech Marine Radion G5 XR30 Blue at 17 cm1.535.5619492031.6187.564
Ecotech Marine Radion G5 XR30 Blue at 37 cm1.097.9339492031.1575.409
Ecotech Marine Radion G5 XR30 Blue at 57 cm647.9409492036833.192
Orphek OR2 Blue Plus 120 cm at 17 cm323.00018054,691.7945.906
Orphek OR2 Blue Plus 120 cm at 37 cm291.00018054,691.6165.321
Orphek OR2 Blue Plus 120 cm at 57 cm259.00018054,691.4384.736
Orphek OR2 Reef Day Plus 120 cm at 17 cm255.00018054,691.4184.667
Orphek OR2 Reef Day Plus 120 cm at 37 cm233.00018054.691.2924.252
Orphek OR2 Reef Day Plus 120 cm at 57 cm225.00018054.691.2514.117
Philips CoralCare at 17 cm1.859.000749190,52.4819.756
Philips CoralCare at 37 cm1.341.000749190,51.7907.037
Philips CoralCare at 57 cm933.000749190,51.2464.899
Philips CoralCare Gen2 at 17 cm1.330.430749168,51.7807.914
Philips CoralCare Gen2 at 37 cm920.277749168,51.2295.461
Philips CoralCare Gen2 at 57 cm631.087749168,58433.745
Reef Flare S at 17 cm332.408300651.1085.114
Reef Flare S at 37 cm248.139300658273.818
Reef Flare S at 57 cm154.652300655162.379
La nuovissima plafoniera Reef Flare S nel DaniReef LAB

The energy per watt decreases linearly in the different distances, as we expected by a diffused ceiling light, but it’s penalized in its peak value.

Maintenance costs

The ceiling lights Reef Flare S cost 300 euro.

The absorbed power is 65 watt, so the relationship cost/watt is 4,6 euro per watt. For a comparison with the other ceiling lights you can consult the following chart:

Ceiling lightPriceConsumptionRelationship euro per wattReferences
Orphek OR2 Blue Plus180 USD54.7 w3,3 euro per wattDaniReef LAB
Orphek OR2 Reef Day Plus180 USD54,7 w3,3 euro per wattDaniReef LAB
Cetus 2215 €60,7 w3,5 euro per wattDaniReef LAB
Philips Coralcare 2019749 €190 w3,9 euro per wattDaniReef LAB
Maxspect Ethereal500 €126 w4,0 euro per wattItalian test
ATI Straton890 €211 w4,22 euro per wattDaniReef LAB
Philips CoralCare GEN2 2020749 €168,5 w4,44 euro per wattDaniReef LAB
Reef Flare S300 €65 w4,6 euro per wattDaniReef LAB
Ecotech Marine Radion XR30 G5 Blue949 €203 w4,67 euro per wattDaniReef LAB
Radion XR30w G2 PRO790 €170 w4,7 euro per wattItalian review
AI Hydra 32 HD430 €90,5 w4,75 euro per wattDaniReef LAB
Radion XR30w G4 PRO915 €190 w4,84 euro per wattItalian article
OceanLed Sunrise 600870 €180 w4,8 euro per wattItalian test
Orphek Atlantik V41099 €226 w4,9 euro per wattTest
Radion XR30w G2690 €140 w4,9 euro per wattItalian review
Radion XR30w G4760 €150 w5,1 euro per wattItalian article
Aqamai LRM465 €87,5 w5,1 euro per wattDaniReef LAB
Zetlight UFO ZE-8000500 €91,5 w5,5 euro per wattTest
Aqamai LRS289 €47,6 w6,1 euro per wattDaniReef LAB
CEAB Slide & Led2.700 €275 w9,8 euro per wattReview
Sicce GNC 4661.592 €120 w13,3 euro per wattReview
La nuovissima plafoniera Reef Flare S nel DaniReef LAB

The ceiling light is very well build, the refinements are really interesting. It’s a heavy ceiling light and it’s very solid. Moreover, seen its heat sinks and the big vent we expect it won’t have any problem with heat. It’s very easy to set and the app is very well done. Easy but complete. Useful that you can always see the temperature. I’d suggest you to set the ceiling light at its maximum, anyway, so that you’ll have its best, with a fast or slow switch on and off, depending on your needs. It’s very easy to use, expecially if you choose their preset programs. The PAR are very distributed, which is strange for a single cluster lamp, with the only problem that if you increase the coverage then the peak values tend to decrease. What that really stands out is the ability to create a very well diffused light, perfect for LPS and soft corals in a nanoreef until 60 cm, more than what the competitors can promise. But with only one of them it would be difficult even to grow simple SPS. The cost per watt is good and the peak PAR per watt are very low. Allegedly it’s similar to the Hydra Prime, even if we didn’t measure it yet. The energy produced is in the average but it can’t compete with other ceiling lights that consume and cost the double or more.

Question and comments, as always, are very welcomed.

For other info you can directly contact the italian distributor Marco D’Ambrosi.