Well I found another forum where people are using this with great success. Apparently for tanks up to 18" deep you will need one 10 watt light every foot. In my case a 125 I will need either 3 or 4, 20 watt flood lamps. I just need to build a hood.
I've got one of those lighting my 10g. It's suspended about 3.5 inches above the water surface. I wish I had a PAR meter so I could share data with you all. I am growing a whole lot of Java Fern and a bit of Staurogyne repens.