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well the very general rule of thumb is Watts/Gallons.
2.25G/2= 1.125 watts per Gallon. I'll say ur setup will be low lighting.
 

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Light intensity depends on how far the light is from the substrate. That could be high, medium or low, depending on how high above the tank it is. Do you have a link to the light?
 

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the rule does not apply to very small tanks, you will need more light, i do not know the exact amount
The rule doesn't apply to LED, either.

It was worked up in the era of 10-55 gallon tanks, with T12 fluorescent tubes for lights.
 

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Okay, link not working...
Go on Ebay and write: Aquarium Mini Clip LED
It should be the first one!!!
Thanks
Save your money, that light ain't gonna cut it, maybe it would keep super low light plants and maybe some mosses alive. You would be better off with one of those cheap jbj cfl spiral setups.
 

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Those are only 1/4 watt or less LEDs, so you will not get high light for sure, almost surely won't get medium light, but might get good enough low light. I'm sure you noticed that it is powered by a rechargeable battery? It's cheap, it might be satisfactory, so why not try it?

I almost forgot, it may give you a stark white light that washes out all color.
 

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