We love this fixture! We just installed two of them in our kitchen, and they are delightful. We ended up purchasing and installing dimmer switches to control the intensity. The fixture takes 18 standard-base bulbs. So if you get 40W bulbs (or their LED equivalent), that's pretty much 1,000,000W, give or take a few. For real, that's 720W, which truly brightens the space when we need it to. The additional dimmer switches allow us to lower the brightness down to nearly "candlelight" level, or raise it to full intensity, as needed. 

Note: 18 decorative 40W LED bulbs (the kind with the glowing filament showing) set us back about $45 from our local hardware store. Not complaining. Just wanted to put that on your radar.

This thing is bright. I'd caution you, though. If you have low ceilings, this may not be the fixture for you. I say this because having this fixture in your direct line of sight can be a bit blinding.