FAQ: 3.1 Question on usage of 12x LED assemblies.
- 3.1.1 Can we use a fewer number of assemblies than you recommend?Open or Close
Photo-synthetics are very flexible in their demand for radiation. As a result, the acceptable limits of photosynthesis are very wide – the minimum allowable intensity differs from the maximum allowable by at least 4 times, and typically 7-10 times. Because of this, very good results can often be achieved with considerably less illumination than we recommend. As one can note, in the assembly calculation program there are two parameters – the best and the allowed illumination. The best illumination provides luminous intensity, which achieves the limit of photosynthesis effectiveness for even the most photophilous corals. The allowed illumination will provide a luminous intensity considerably above average, which is not insignificant. If you wish to save, you can install even fewer assemblies than the calculation provides for allowed illumination. Please, don’t forget – because of the fact that on 12x LED assemblies a large number of LED's provide radiation of low visibility to the human eye, the use of a smaller number of assemblies will provide a sufficient volume of illumination for the corals, but will look dim to your eye. Also do not forget that if you use fewer than the number of the assemblies recommended, you will need to raise the height of the fixture for the light of the assemblies to be evenly distributed over the surface of the aquarium.
- 3.1.2 How should we arrange the 12x LED assemblies on the aquarium area?Open or Close
It is desirable to arrange the assemblies evenly over the surface of the aquarium, but the distance from the assembly to the glass edge should be slightly smaller than the distance between the assemblies. Namely, if the distance between the centers of the assemblies appears to be Х cm, the distance from the nearest assembly to the glass is desired to be ~0.7Х.
- 3.1.3 Can we use thermo-conductive glue to fasten the light diode assemblies to the heater?Open or Close
The thermo-conductive glue is impossible to apply with such a thin layer, as the thermo-paste, so thermo-conductivity of such a connection will be significantly worse than using thermo-paste. We do not recommend using such an adhesive, at least for passive cooling of the light diode heatsink.
- 3.1.4 At a setting of 0% brightness, the diodes continue to gleam weakly or twinkle. What should we do to stop them from gleaming?Open or Close
If at a brightness setting of 0% the diodes continue to gleam weakly, it means that there is crosstalk on the controller flat cable. To eliminate the crosstalk you can do the following procedures, in the given order. Please try them one at a time to see if you get the desired effect.
1. Replace the flat cable farther from the power supply wires.
2. Put the flat cable through a ferrite ring. Diameter of the ring is not important. Attention! The cable should enter the ferrite ring from one side and go out from another side. So the cable itself should be driven through the ring, and not its loop.
3. Shield the flat cable. You can use metal placement grid, scotch with aluminum foil, simply aluminum foil, as well as any metal profile or tube. It is required to connect the screen metal with the fixture casing, which should be tied to the “negative” of the power supply. The power supply should be grounded.