LED HPS comparison.

LED or HPS

  • LED

    Votes: 86 71.7%

  • HPS

    Votes: 34 28.3%
  • Total voters
    120
Airwalker16

Airwalker16

Well-Known Member
PetersTosh said:
www.aliexpress.com

235.53C$ 39% OFF|Led Grow Light Samsung Lm301h Led Full Spectrum 240w 480w 720w Samsung 3000k 660nm,veg/bloom State Meanwell Driver - Growing Lamps - AliExpress

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Check this out, i think its the best cost-benefit you can have.
I got one LM301H + 35k 660 450 UV IR FS + 240W
Click to expand...
It's certainly a decent price and the board is very large. One of the only fixtures I've seen with active cooling, which is sweet.
But the sheer amount of typos, misspellings, and all around incorrect use of words is appalling. Like, whoa....
 
P

PetersTosh

Member
Airwalker16 said:
It's certainly a decent price and the board is very large. One of the only fixtures I've seen with active cooling, which is sweet.
But the sheer amount of typos, misspellings, and all around incorrect use of words is appalling. Like, whoa....
Click to expand...
They just Chinese, not English Teachers :lol::lol::lol:
I think it translated automatic from chinese.
And sorry about my english because i am Brazilian. ;)
 
FastFreddi

FastFreddi

Well-Known Member
Well, I just switched over from 2x 600w coolhoods.
Over two grand later just in my flower room, but I dont diy electrical, so had to buy plug and play.
My area of coverage is approximately 70 inches wide by about 48 inches deep.
Veg tent is a 5x5 but utilizing only some of it due to equipment, but I dont need to fill it, about 800 or so...all in Canadian dollars.
I switched because of heat issues in all seasons but winter.
I now have full and much easier control of my environments.
The one thing I suggest is QUALITY.
My main flowering lights are Timber 3vl x2....awesome build and solid warranty. My plants love the changeover. I am not a cash cropper, personal only.
Hope this helps.
FF
 
J

Jackasss710

Member
FastFreddi said:
Well, I just switched over from 2x 600w coolhoods.
Over two grand later just in my flower room, but I dont diy electrical, so had to buy plug and play.
My area of coverage is approximately 70 inches wide by about 48 inches deep.
Veg tent is a 5x5 but utilizing only some of it due to equipment, but I dont need to fill it, about 800 or so...all in Canadian dollars.
I switched because of heat issues in all seasons but winter.
I now have full and much easier control of my environments.
The one thing I suggest is QUALITY.
My main flowering lights are Timber 3vl x2....awesome build and solid warranty. My plants love the changeover. I am not a cash cropper, personal only.
Hope this helps.
FF
Click to expand...
Do u have a pictures incan reference?
 
FastFreddi

FastFreddi

Well-Known Member
My main lighting is the Timbers, and 1x mars sp250 in the centre, and 2x sp150's 1 each end to help with drop off.
And yes thank you, they are.
FF
 
hybridway2

hybridway2

Amare Shill
Jackasss710 said:
I have about 4500 to start with Nd the room is 10' by 12'
Click to expand...
I'd focus on the room, rez, environment (de-hu, AC, Fans, genetics, timers, potts ect. Unless you have most of that already.
10x12 bedroom or high ceiling commercial space?
4500, can start up a 10x12 quite nicely.
Or if you have most of what you need then your led research is key now.
Electrical efficiency is not everything nor is spectrum. Its a nice split down the middle that has provided the results.
Minimum spectrum play I'd use would be 35k, 660, 740nm (need the blue & the n/ir or 740nm, 660+740=Emmerson Effect+). Simple, highly efficient & effective. Check heatsinks for proper cooling (no such thing as to much heat dissipation). If there's nothing to it, it probably won't last. You'll want covered diodes. Avoid Lights with Drivers mounted directly to the bar or board. If encased then its all in one & will have to go with reputation of build quality vs service + warranty. Reputation helps but isn't everything. There are plenty of good companies not getting the credit they deserve.
Efficacy #'s do not tell the whole story.
When judging solely off posted efficiency #'s, Spectrum is often overlooked. As well as fixture design which often effects canopy coverage. Though its good to have when it is true as a baseline. The point is to double your photons per watt consumed while increasing quality.
Some are finding CMH + LED to work well. Generally those using white or wh/r leds as the cmh fills the desired gaps, led provides efficiency, photons & often some red with a smoother curve, so they compliment each other.
Companies recently started making efficient leds that include the full spectrum or darn close. I have yet to meet a person using one. Mine is pre-paid & Ima waitin patiently.
Plenty of options for efficient leds nowadays. Only a few for full spectrum which maximizes the plants morphological abilities. Remember- efficiency vs spectrum to get the best of both.
Warrenty & reputation. Lack of reputation isn't so bad as the innovators or often ignored by the majorities who are used to & happy with what they have. Then copied by the more popular companies later.
Bad reps & multiple complaints should be avoided no matter what. Cheap Burples or 200w/1200w equivalents should be burned.
Goodluck!
1800w of properly enhanced spectrum bar lights (16 bars) just gave me 7.3#'s. X2 lights, 12x4 of mostly canopy. X4 plants. Bag appeal & density through the roof.
Just don't see myself doing that with Any HPS.
 
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