the lens kit actually concentrates the light into a tighter beam, if its the ones im thinking of, (i thought they only have the one type)Yeah getting new tank built.
I got one unit for now (just to play with). I'm not using it over the tank just yet. Waiting for my new tank to arrive first.
Then will get another one.
Also got the lens kit as well which helps give more spread of light.
what lights did you have over your current tank?