What's the difference? 250w HQI - Hamilton 14K vs. Helios 20K

[flugelnuss]

I have been using Helios for the last couple of years and can't seem to find any place that has them in stock. I looked at Sanjay's website and I can't seem to find the plot for the hamilton 14K DE. It only has the mogul option. I have a SLS Bluewave VII ballast. I used to use Phoenix but found that it washed out the color of my coral.

How close is the Hamilton vs the Helios?

 

[Versus]

pics

 

[flugelnuss]

How is the PAR different from the Hamilton 14K vs the Helios 20K? I am running a mixed reef.