Better cooling system for my indoor?

[SSNoW]

Hi

I have an indoor 1.20 x 1.20 x 2.00 (meters). Where I put/grow 16 plants in 15 liters pots (land).

Use HPS 600w. My idea is buy a reflector " adjust wins " medium - normal (economic).

I can not get air fresh from street for my indoor
But if I can draw hot air of my indoor and out to the street, away from home (use carbon filter to avoid the smell).

It can be interesting buy a cooltube?

I have read many bad things, such as: eliminating much of the lumens / photons. ¿really?

But, if I use a cooltube .... I be able to reduce the distance between plants and light / bulb hps, plants get more light ¿yes?. So what is positive not?

My last sesion, I use about 40 - 50 cm (centimeter) plants - light (I prefer use 20 cm better.... but very hot).

Any idea / recomendatio?

Sorry for my bad english mates

 

[coldcanna]

There's a sticky in this forum that shows you how to calculate ventilation needs and goes over a couple different setups of fans. Read the first couple pages I think everything you need to know is in there.

 

[SSNoW]

There's a sticky in this forum that shows you how to calculate ventilation needs and goes over a couple different setups of fans. Read the first couple pages I think everything you need to know is in there.

Thank you, had checked everything before writing. The attached pages show great information, but I wonder something else:

Is cooltube profitable? Lumenes lose, but I can put the light closer to the plants. That is profitable for more production?

Thanks