45 days autoflower looking sweet!

[gaggrouper]

I'm a novice, so I don't have much to compare to but this autoflower is massive. It's 40 inches tall and has like 20 bud tops. Looks spacious so I'm hoping the simple T5 setup will get light into a lot of the smaller tops.

Anyone care to guess a range of dry yield and do you think I'm harvesting before Christmas cause I'm set to leave for 5 days?

Thanks!