ForgetClassC,
Oldmac has two prototypes and I have one of their production units.

They are a bit of $$$ but work as advertized. They should last 7 years or so and still be on specs and uses about half of my equivilent HPS rig's power to get the same results. The output is so cool I can grow up to 6" or so from the bottom of the lamp (at which point light intensity becomes an issue instead of heat.) I'm on my second TI Probloom powered grow and loving it.

I'll leave oldmac to speak for himself, but I'm sure it will be positive.

M.P.