Thanks for the feedback gfretwell.

I have contacted Hadco for tech assistance and they haven't an answer for me yet...in 3 days mind you...

You see...I don't see a answer myself.

These inground 175 MH fixtures feed directly into the fixture beneath the ballast...so where am I supposed to transition to THWN?

If I were to have a handhole 2 feet away...what would I use underground for the supply conductors from the fixture to the handhole?

There is NOT a conductor listed for the wet location except MI at above 90C in table 310.13...?

shortcircuit