I don't think right the correlation between Watt and liter because a deep tank with small surface area can have the same volume as a shallow tank with large surface are and in this cases the light concentration will be so much different.
Also the coral type that you thinking to have in tank should have considered.
My reference to calculate the power for a reef tank with SPS only is 360 W/m² because I see a beautiful reef tank using this ratio years ago.
The tank that I have as reference was using Cree LEDs of 3W distributed in this way:
Now searching for commercial references I found this article where a Hydra 64 and a tank with 1,20 x 0,6 m are used for tests.
In this article 2 scenarios were used where the first is for LPS and Soft corals and the second is for SPS.
LPS and Soft corals
SPS corals
In the first scenario is used 2 HD64 in the second 3 HD64.
Considering that HD64 has about 90% of efficiency each unit has 120 W of real power.
So for LPS/Soft 240 W is used and for SPS 360 W is used.
Calculating the ratio for LPS/Soft we have:
240 W / (1,2 x 0,6 m) = 333 W/m²
Calculating the ratio for SPS we have:
360 W / (1,2 x 0,6 m) = 500 W/m²
Concluding:
If you are going to use 3W LED use 360 W/m² for SPS and about 300 W/m² for LPS/Sof.
If you are going to use multchip LED use 500 W/m² for SPS and about 330 W/m² for LPS/Sof.
My first question is, which option do you think is the most recommendable of the following?
I can't say because each LED will give a final color as result and it's a personal choice.
Do you know more interesting options than the ones I include?
The options are single or multi chip LED.
Is the correct Meanwell driver depending on the channels that I think?
If you are going to use LED with max. current of 1500 mA a LDD-1200H should be better.
What power supply would be suitable depending on the model?
If you are going to a multichip LED with different voltages like your option B you should use power supplies according to each voltage or add a step down on circuit before each driver. The best option is to agroup all 15 V LED channels and connect to a 15 V power supply, the same for others voltages.
Best regards.Statistics: Posted by Fernando Garcia — Fri Oct 23, 2020 12:36 pm
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