We did our test with the Cetus 2 in the DaniReef Lab, where we measured the PAR and created the relative distribution curves. Let’s see how it went.
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Cetus 2 by HM Electronics is a highly requested ceiling light used in particular in nanoreef. We had to try it thoroughly!
Technical characteristics of the Cetus 2
The LED has 8 different coloration and they are divided in 6 channels. There are 15 LEDs in each cluster.
The LED are divided in:
- 4 LED cool white;
- 1 LED warm white;
- 4 LED deep blue;
- 3 LED blue;
- 2 LED cyan;
- 2 LED purple;
- 1 LED UV;
- 1 LED red.
The other declared characteristics are:
- Power: 84 w
- Dimensions: 10,9×10,9×5(h) cm
- Selling price: 215 euro, vat included
Construction
This ceiling light is very well built, the software it is equipped with is among the most beautiful and fastest I’ve ever seen and, most of all, it’s very easy to set.
There’s also a useful bracket separately sold for hanging the ceiling light on the aquarium’s sides. The bracket can be adjusted and the hanging system is handy and versatile.
The Programming
The ceiling light can be used through an app available for Apple or Android by Bluetooth. This assures speed and stability and avoids any problem a wifi network can cause. Launching the app you will be asked to activate Bluetooth, then the app will search the ceiling light. In a few moments everything will be within the reach of your fingers. You can set each channel of the ceiling light, or you can choose among the preset programs inside a worldwide map. I really like this feature: handy, funny and intuitive.
Here above you can see the manual control as it is on iPhone, where you can simulate the depth and the intensity. Otherwise here below there’s how you can interact with every channel, easily and singularly. Notice that there’s no lag between the control on the smartphone and the changing in the ceiling light. One of the best software I’ve ever seen.
All the values we measured and our working method DaniReef LAB are on page two.
