LED Light recommendation 4x2 Tent

A

aquino

New Member
Hey,

Can anyone recommend an LED light for use in a 4ftx2ft tent, growing x4 Autos.
Maximum budget is realistically €300'ish, at a push 10.0.0.0.1 192.168.1.254 .

Preferably something pretty light on Electricity as rates here are through the roof.
Must be a hassle free light that will absolutely, 100% be sufficient for x4 autos in a 4x2 tent!

Was looking at:
• Spider Farmer SF2000 (2023)
• VIPARSPECTRA XS2000
• VIPARSPECTRA Pro Series P2000

Any suggestions or advice is most welcome.
Thank you,
 
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B

Bud man 43

Well-Known Member
I would recommend the vipar xs 2000
I have several vipar fixtures and i like them
Xs has better diodes than the p series
 
Billy the Mountain

Billy the Mountain

Well-Known Member
aquino said:
Hey,

Can anyone recommend an LED light for use in a 4ftx2ft tent, growing x4 Autos.
Maximum budget is realistically €300'ish, at a push.

Preferably something pretty light on Electricity as rates here are through the roof.
Must be a hassle free light that will absolutely, 100% be sufficient for x4 autos in a 4x2 tent!

Was looking at:
• Spider Farmer SF2000 (2023)
• VIPARSPECTRA XS2000
• VIPARSPECTRA Pro Series P2000

Any suggestions or advice is most welcome.
Thank you,
Click to expand...
The SP3000 is pretty close to ideal for a 4x2 area and obliterates the SF and Vipraspectra lights listed


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G

Ganjamann2020

Active Member
Phytoplankton said:
With LED's you want between 30-40 watt per sq. ft., with the sweet spot being around 32-35. Higher with HPS. That said, you could dim a 400W.
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right now I have a 200 actual watt full spectrum and a 125 watt blue and red with veg/bloom always switched on with 2 autos, will the different types of light throw it off? My light meter pegs out at canopy level.
 
jimihendrix1

jimihendrix1

Well-Known Member
Phytoplankton said:
With LED's you want between 30-40 watt per sq. ft., with the sweet spot being around 32-35. Higher with HPS. That said, you could dim a 400W.
Click to expand...
While LED are a bit more efficient now.

The Gavita 1700e, was made to be a direct replacement for a 1000w HID, in a 4 x 4 area.

The 1700e, is 645w.

Thats 40w sq/ft. To EQUAL, a 1000w HID, in a 4 x 4 area. They dont claim it outperforms the HID, but is equal too, and is a direct replacement.

With a better, more efficient light, like a Mammoth 880w, in a 5 x 5 area. Thats 35.2w sq/ft. That is the absolute lowest I myself would go. But all bets are off, if the set up doesnt use the best diodes, and drivers available.

The 680w Mammoth, in a 4 x 4 is 42w q/ft. 2095umol 3.1 Efficiency.

880w Mammoth Emerald Green 8 bar is 2711umol. 3.1 Efficiency.

Both, are as good as it gets right now, and have a 4800k- 5000k spectrum vs the sun. 5800k.

A more red spectrum, may increase yield a bit, but the more complete spectrum is supposed produce a better terpene/chemical profile.
The 1000w Hortilux Blue HID/Metal Halide 5500k, is the closest bulb made, to the spectrum, of the sun, and has a spectrum of 385nm-2000+nm. Spectrum wise. No LED is even close. Widest Ive seen is 437nm-720nm.

Notice the really strong Green, like the Sun. And the red, is still really strong past 720. All HID, go to/Past 2000nm. Even a regular incandescent bulb, goes to 2000nm.

1708235409161.png
 
S

stonedfood

Member
jimihendrix1 said:
Mammoth use the best diodes, and drivers available.

The 680w Mammoth, in a 4 x 4 is 42w q/ft. 2095umol 3.1 Efficiency.

880w Mammoth Emerald Green 8 bar is 2711umol. 3.1 Efficiency.

Both, are as good as it gets right now, and have a 4800k- 5000k spectrum vs the sun. 5800k.
Click to expand...
I have to agree with this, which makes the MOSO driver and LM301H with Mint Evo on1 Mars Hydro's FC-4000 my current 4'x2' light of choice and the SP-3000 great generally but poor for canopy penetration. Spray waterproofing also won't stop you getting a shock from the SP-3000's exposed caps.
 
Billy the Mountain

Billy the Mountain

Well-Known Member
stonedfood said:
I have to agree with this, which makes the MOSO driver and LM301H with Mint Evo on1 Mars Hydro's FC-4000 my current 4'x2' light of choice and the SP-3000 great generally but poor for canopy penetration. Spray waterproofing also won't stop you getting a shock from the SP-3000's exposed caps.
Click to expand...
Please explain how you arrived at that conclusion.
Is it an empirical measurement or merely an opinion?
 
S

stonedfood

Member
Billy the Mountain said:
Please explain how you arrived at that conclusion.
Is it an empirical measurement or merely an opinion?
Click to expand...
Both. The spread is good for a single (wide) bar and the but owning 4 of these fixtures I've found that doubling them up in a 4'x2'x6' and reducing the output power accordingly gives me over 20% improvement in yield and less airy buds lower down. I've also run both 2 and 3 of these in a 4'x4' and the light penetration is visibly improved at the same wall draw. Running 2 of them at low power in my veg space dramatically improved health, but I did find that the same wattage of low wattage quantum boards had better penetration too, in part due to the match of lighting area and tent area.

Of course, you can improve lighting uniformity (PAR map) by lifting the lights and turning them up, and this can alleviate hotspots and some of the issues. Good airflow and circulation can help too, keeping the plants dancing helps improve your total DLI to the plant. Most wavelengths of light barely make it through a leaf, let alone a thick cluster of fan leaves, and the extreme defoliation (schwazzing) practiced by a lot of growers is partly a response to the differences between the sun, which is wonderfully diffused by the atmosphere, and a single LED fixture not giving much near-red (warmth) or being able to fire photons in many different directions compared to the big old sunball. You may know all this already.
 
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