Not even the size of a t5, let alone t8. Only about 6 inches per light. The aluminum panels are not adjustable at all.

The ppfd ratings this company has posted are highly exaggerated. This is the most disappointing purchase i've made in a very, very long time.

The 600w fixture is not sufficient enough light for my plants. It was called a 600w but used 260+ watts.

The power supplies and dimmer stuff look impressive, but it could all have been attached as a single unit without all the heavy cord that ends up piled on top of the thing and unbalancing it. The connection at that light board is made with just a dab ...  Read More

All the hold down knobs are upside down! Nut upside down to. The timer directions make even less sense. The last two i received have no controls whatsoever.