Trying to get an estimate for my lighting. I have a beamswork led light. It's output is 1050 lumen. The watts converter states 25 watts. Does that consider it to be a medium light on a 10 gallon tank with about 2-21/2" substrate depth? Tried to look around on Google but I think I'm not searching the right areas. Also, would it be better to get a par meter to measure my par? Where would one buy one?