Those look like pc lights. I didn't see the spectrum of light they put out. It looked like 4 or 5 maybe 55 watters in one bulb.... I don't know. But in the end wattage doesn't matter. Its the intensity of the light. And in the end it just pc's it looks like. I don't know.... Never seen anything like that.
1st off its not 500 watts its only 65 watts, 2nd the bulb probably isn't the right K value for corals and you will get wild algae growth, also its more of a shop light so something and won't really mount in your aquarium