I have a rack of 10 gallons using the Satellite Freshwater plus LED. I have two fixtures. Each fixture is 36" long and used directly on top of two 10 gallons that are side by side. Because they are side by side, their total length is 40". That means that the fixture doesn't cover the entire length of either tank.
Both tanks are on timers and receive around 8 hours of light/day. It is important to note that I have both fixtures on the PURPLE preset button. This is not the highest PAR setting for this fixture but I use it because I prefer the color of my fish under this lighting. Three of the four tanks use pressurized CO2 that is ran into a HOB filter. Every plant I have tried under these lights has grown well if not better then in any other tank I have.
The top row has more light demanding plants. In one tank, I have an HC carpet and Blyxa Japonica. In the other tank, I have DHG Belem and Erio. Parkeri. Both tanks have carpeted extremely well, even spreading to the outside few inches of the tank that are not covered by the spread of the fixture.
The bottom row has had much more variety in plants including many slow growing or less demanding plants. In one tank, I have grown the following very successfully: Pogostemon Erectus, Rotala Green, Rotala Colorata, Stauro. Repens, Crypt. Parva. The other tank has had Java Fern, Java Moss, and Anubias Barteri.
I don't want to elaborate much about other aspects of the tank because I am writing this as a review of just the light. I feel it is important to mention the following though. Even in this slower growing tank, the only time I have had issues with algae is when this tank has had no CO2. All Algae is cleared up just from adding a DIY bottle of yeast and sugar water with a cotton placed in the tubing. Very little of this CO2 stays in the water because this tank uses air driven sponge filters that create a lot of surface disruption. It is enough to ward off the algae though.
I have these tanks documented in a journal. Feel free to check it out to see the progress with these lights for yourself. The journal can be viewed here:
Nice Rack (4x10)
I'm not affiliated with this company in anyway and I paid for these fixtures myself. I do have other fixtures on other tanks as well. In my opinion they work extremely well with a nice balance of features for the price. I wouldn't use them on a deep tank but for shallow tanks, I wouldn't use anything else.