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

More importantly, it is just a nice light that actually grows plants well. The response from the plants in every stage is just phenomenal. Plants are happy and stacking in nicely. Ac infinity is by far the best grow lights i have yet to come across.

The only dislike i have is that the power cord for this light is not as long as i'd like. I have no doubt it'll last me forever because it's ac infinity. Ac infinity is hands down the best.

It's cheaper then getting the next size up. Saved 50 bucks that way tho. Dont hesitate. This light though is well worth it.

Incredibly well designed light, with smart functionality, with an ac infinity controller *sold separately*. The uis is a neat feature if you have the controller. With the 69 controller pro panel, everything is timed/triggered perfectly.

The light dispersion the ionboard is incredible. There are a few brightness settings (although i only use full power) and the foot print is amazing even without the extra bulk of a reflector.

I believe the driver over heated and burned out. Not only is this light ruining my second grow, but it is costly enough that it isn't worth buying a new one for every or every other grow.