Hi,
The only EG's that are not programmable are the 2120. You have to manually set them with adjustment knobs and set them with a timer.
All the other models we sell have built in controllers and are indeed fully controllable.
Each 24" 2060 will easily cover 36" mixed reef. Supplementing with T5 will allow you to grow anything you want and will eliminate any shaded areas.
Here are some pics of a client using 3 x 2120 over a 60x18x18
