The Kessil is indeed smaller.
My Mars Hydro has been dead quiet.
Kessil's parent company builds light for many different industries. And if I have my history correct, Kessil started making lights NOT for the reefing community but for the Horticulture industry. It's almost safe to say that is still their main focus.
Mars Hydro has a reefling light as well if I'm not wrong.
While cost is not the only factor, for the purpose of growing chaetomorpha, a green plant, both seem to do the job amazingly well. So the decision to NOT buy the Kessil for me was because size and shape are a non factor for me so cost was the only deciding factor.
But there is nothing wrong with buying a Kessil. I almost bought a H350. Because it's white instead of black.
Some people buy Ferraris, others buy Acura even if they could afford Ferraris. Different strokes.
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