Enough or too much light

My closet grow area is 26 inches Long, 23.5 inches wide and 64 inches tall, is this enough room to grow one maybe 2 Grapefruit strain girls?

I forgot the main question (damn WW), is this light strong enough for this grow area?
High Tech Garden Supply

Seeds are on the way so I need to buy a light before next Friday.

That's a lot of light! You have 4 square feet. 400 watts will be bright, and hot in there. That hood cannot be air-cooled, so I would get one that can be, should you want to add that later.

I also wouldn't worry about the MH conversion lamp. Using the enhanced spectrum HPS lamp all the way would be better because it has more lumens.

HTH

This is listed towards the end "future upgrades including air-cooled reflectors" so potroast was right it is not air cooled that is an upgrade. And you will want that in your enclosed area because heat build up will be a problem.

I'll see if i can find a enhanced spectrum HPS lamp that's air cooled. Hopefully it won't break the bank

That light is good for that area, i got the HPS only version. While it's not set up to be air cooled.. i have a fan blowing right on the hood and it cools it well..