New setup for indoor orchids

[Azmahhh]

Hi guys!
I am new to the forum. Moved from the tropics (where growing orchids outdoors was the norm) to the bone-chilling northeast! So had to figure out a way to keep orchids indoors. After much reading, I decided to go with T5HOs, I have two shelves with 2ft fixtures 4 bulbs (24w), with 2 3000K and 2 6400K. I made humidity trays with egg crates. And just waiting on a small fan for air movement. Humidity keeps 50-70%, temps 68-78F.

Currently have phals, 3 oncidiums and 1 catt under there. I assume this should be enough light? oncidiums and catts are 6" to near touching the lights; the lights don't get warm as such. The phals I have kept 12" away. Just set it up 3 days ago. Expecting a few more plants.

What do you guys think? Any suggestions? Do I need more light?