Lighting question

Which is the best deal. Changed my room to 2x3.5x5 noe i git $150 to spend in a light. theres 400w with cool tube for 144 or a 600 watt with gull wing reflector for 144 I'm going to grow dive auto blue mystic which is my best bet? Doubt ill dver griw more than six plants and i can rebuild growroom if i go.with six.

I'm not sure if a cool tube does anything without an extraction fan hooked up to it.

Id eventually get one. I get off probation next month so I'm gathering materials and building it to get ready. just wondering which is the best investment.

Anyone? Ordering the light in 2 1/2 hours when the bank opens id appreciate an experienced growers advice so i don't make a mistake and realize halfway through the grow i should have done tge opposite of what i did. Thanks guys

I'm sorry I'm not sure. I have a 400 watt gull wing in a room slightly larger than that and it gets warm in there, not quite hot yet but nice and warm, and I don't have an exhaust fan just an osculating. I would think if you had an exhaust in the room then a 600 watt gull wing would be okay but you might have some problems in the summer. Take my words with a grain of salt though, as I'm still very new to hids.

If it's a dimmable ballast I would go with the 600 and gull-wing. You can always dim it it your having heat issues.