ryuyugo2989
Well-Known Member
i bought a VIVOSUN 4x4 Grow Tent, 48"x48"x80". i was wondering if my 400w hps is good for this size tent. i was also looking into getting a HGL Scorpion Rspec 600w or the HGL blackbird 2022, are these any better?
is a 400w hps too much for a 4x4 grow tent?
- Thread starter ryuyugo2989
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Herb & Suds
Well-Known Member
The four hundred hps is to small imo
Either of the others is a good choice
Either of the others is a good choice
Hippyhurray)
Active Member
400w HPS is better for a 3' x 3' tent. Just keep the light as close to the canopy as possible, during the flowering lighting period. Check that your hand doesn't get uncomfortably hot under the light, at the distance of the canopy height.i noticed according to the breeders description of a strain I'm growing; they recommend LED for the veg state and HPS for flowering. So, I wouldn't totally disregard their application.
xtsho
Well-Known Member
I run a 600 watt HPS in a 4x4 tent. 400 is going to be underpowered. And HID will grow some serious fire in a 4x4. You need at least a 600 which will allow you to grow 3-4 plants. How those plants turn out depends on the grower but you can get the same quality with HID as you can with any LED. HID's use more electricity and put off more heat but they grow some damn good weed.
xtsho
Well-Known Member
I'm thinking of timing my winter runs so I can break out the old 1000 watt magnetic ballast for a run or 2.
Billytheluther
Well-Known Member
I notice 600 hps in a 4x4 hard to keep within optimal temps where i live, very nice buds but i think i loose terps due to 91 degree temps,
I had a 315 cfm fan pulling air at full speed so the filter didnt do so well, i had to upgrade to a 8x24 phresh to help with the smell. Very nice buds but everything got easier whith leds,
I think 600 in a 4x4 is bare minum amount of wattage,
You wouldnt want less than that in a 4x4.
I got a mars hydro fc4800 and think it blows the hps out of the
cobshopgrow
Well-Known Member
600W HPS is the classic for a 4x4.
while nowadays i would go with a 480W led.
while nowadays i would go with a 480W led.
xtsho
Well-Known Member
Yes it can be difficult to control Temps. That's why I shut down during the summer and grow plants outside for a run.
Southernontariogrower
Well-Known Member
I'm running a 660w bar fixture, other light was bar type 600w either give full coverage to 4x4. Without the heat issues of hps. Was using 1k hps, heat was issue! Watts are watts. Saving 400w is a big issue. Any 3k or 4k with 660 deep reds will suffice. Or mix of spectrums good also. 600 watts will give you 37.5w per sq ft. Enough to flower well.
coreywebster
Well-Known Member
The two LED options or their equivalent will be vastly better than the 400w hps for flower.
For me , I'd still veg with that 400w but I'd slap a metal halide bulb in it.
For me , I'd still veg with that 400w but I'd slap a metal halide bulb in it.
Mason Jar 92705
Well-Known Member
1000 watt light all day long.
jimihendrix1
Well-Known Member
A 1000w HID has aways been the basic standard in a 4 x 4 area. Tis gives 62.5w/sq/ft. A 600w is meant for a 3 x 3 which is 66w sq/ft.m The main thin in a tent or even a large room is heat, and getting enough air flow. The better the fresh air exchange, the higher the temperatures can be tolerated. Fresh air exchange is one of the most inportant factors in ndoor gardenng. Be it HID or LED. Weed needs a ton of fresh air to reach its optimum genetic potential. Also the more air the more light they can tolerate. Many times when people get light bleaching is because of insufficient air flow. I can get a 1000w Hortilux HID as close as 15 inches when I can keep the temps at 85f -88f, as long as I have tremendous fresh air exchange. I get no light bleaching. I also start seedling under 1000w HID at 24 inches above seedlings. It gets 90f outside doesnt it?? Especially along the equator, or southeast Asia. Even Hawaii. I also keep fans slightly blowing on my plants, and make sure all of the leaves are getting a noticeable breeze, and they are all slightly moving.
ANC
Well-Known Member
Many people run 1000W in 5' tents. a 4ft is going to need some serious air exchange or sealed room with CO2
jimihendrix1
Well-Known Member
1000w in a 5 x 5 is only 40w sq/ft. Its said the minimum should be 50w Sq/ft for HID. In a 4 x 4 and 1000w is 62.5w sq/ft.
The sun is 92.94w sq/ft.
The sun is 92.94w sq/ft.
PadawanWarrior
Well-Known Member
Most pros I know do a reg 1000 in a 4x4, and a DE 1000 in a 5x5.
Kassiopeija
Well-Known Member
Alot of heat from HPS is radiant, meaning it builds up within the leaf tissue, can't prevent that by high air exchange.
The 600w in 4*4 has very light in the corners but still a heavy central spot, that is were the problems will surface
The 600w in 4*4 has very light in the corners but still a heavy central spot, that is were the problems will surface