Best light for a 2x4 or 4x4?

[trueblu8]

you just need an exhaust fan. Any cheap digi hps/mh combo ballast and a 400w dimmeable will work for that size and expandable to almost a 5x5 in reality if you just use a vertical hanger. Get an HPS bulb with added blue spectrum, like old hortilux, I think viagrow or someone sells similar now. Exhaust fan and carbon scrubber. Run at night lights on in winter too but keep the room dark if you do.

What's the best carbon scrubber? I want to try to eliminate all smells.

 

[LostTribe]

smell is dependent on the smeller, type of smell and if you are close to harvest for a couple weeks. Thats a small tent.

 

[SubGirl]

I was thinking about doing the same thing, getting two 2x4 tents. You know I wanted to get a high-end light like an HLG Diablo or Grandmaster LEDs Tarantula Torch. But I must admit those Mars and Spider Farmer lights are quite impressive. I like that they even have a digital display which a lot of the higher-end models do not have. And I like that the dial is in the middle facing you when you open the tent.

Two tents work best for me. I wish they were 4x4 but I can have one in flower while growing clones in the other in veg so I like that. Not as much waiting between grows either. I love both lights. My temps are high here so I like the fact they put out very little heat

 

[SubGirl]

What's the best carbon scrubber? I want to try to eliminate all smells.

I just replaced mine after three years. I got this one after asking all my friends here…

 

[LostTribe]

if you do go that route invest in one oil heater per tent.

 

[OleReynard]

Two tents work best for me. I wish they were 4x4 but I can have one in flower while growing clones in the other in veg so I like that. Not as much waiting between grows either. I love both lights. My temps are high here so I like the fact they put out very little heat

A small perpetual if you will.
3 stages is nice seed, veg and bloom

 

[Rocket Soul]

6 ft tall AC Infinity tent in a basement. It's pretty cool down there.

That would mean bar/strip light if leds and either some extra heating or using a bulb like light. While 85F inlet seems excessive you do want to at least be able to bring your growspace up to 81F with high intensity leds.

If this is you just starting out id rec you to start with a 4x2 and CMH on a batwing reflector. Its the ultimate easygrow light source. A 315 may be a bit light on power but you cna always add a couple of led strips or cobs on the sides. Once youve got a bit more hang of things then get a bigger tent and leave the 4x2 for veg.

 

[Rocket Soul]

I was thinking about doing the same thing, getting two 2x4 tents. You know I wanted to get a high-end light like an HLG Diablo or Grandmaster LEDs Tarantula Torch. But I must admit those Mars and Spider Farmer lights are quite impressive. I like that they even have a digital display which a lot of the higher-end models do not have. And I like that the dial is in the middle facing you when you open the tent.

Do not a get an expensive super light until you figured out how to master the environment in your grow space. A Diablo with 65F temps is not going to work well no matter how much it cost you.

 

[trueblu8]

Youre probably better off defining "best" a little better. What are you after? Is your climate hot or cold? Do you have any hanging height restrictions?

It would be going in a cold basement in a 2x4 tent. I'd say it's around 40 degrees in the winter and maybe 60 in the summer.

 

[Rocket Soul]

It would be going in a cold basement in a 2x4 tent. I'd say it's around 40 degrees in the winter and maybe 60 in the summer.

CMH with batwing reflector, oriented across the 2' side for spread, with some type of led support on the sides. Easiest light to grow with and should help a lot with the cold. Or just led with some extra heating in the tent.

Extract from the bottom and air in on top if still with cold problems. Or even build a box or something, something you can insulate somewhat. Hope it helps

Edit: actually its very hard to give very definite advice. Led + cold is not a good idea. The work arounds is adding heat. You can add heat thru some kinda heater but generally i feel that bulbs, hps or cmh or even incandescents, are heaters that also give off light. Your probably going to have to tweak this a little and develop it as you go along. Fairly clear to me that your summer and winter will look a bit different.

But id still say, CMH is probably the easiest light to grow with.