Well they've listed the brightness in lumens rather than PAR which makes it a bit tricky to know. (Lumens is more to do with how bright it looks to the human eye rather than how much light the coral can use).
Anyway we can still use it to gauge the brightness (very roughly!)
You'd need the Zetlight model: ZP4000-M-895-34W to fit a 100cm tank. This outputs 2600 lumens.
In comparison, a single marine T5 lamp (Arcadia J5 Marine) outputs 1500 lumens. So let's say you have a two tube fitting, that's 3000 lumens. So the Zetlight is slightly less bright than that.
So long story short, it probably
is towards to lower end of the range, however it looks like you could easily fit another to your tank down the line if it isn't bright enough. :)
Also according to APS
you'd also need to buy some controllery thingies to be able to program it so don't forget to factor those in