New Spectrum King SK600

cdgmoney250

cdgmoney250

Well-Known Member
Well guys, they are at it again and this time claiming to be "The Most Powerful Grow Light "In The World".

https://www.spectrumkingled.com/product/spectrum-king-600-led-grow-light/

While that claim is still TBD, the lower profile of the fixture looks to be almost half the height of the older SK450 model. I've seen these in action and they do a fine job, though the footprint kinda sucks.

Maybe these newer fixtures will have addressed some concerns about previos fixtures.

What do y'all think?
 
BM9AGS

BM9AGS

Well-Known Member
For my opinion....

2 ft distance is 1200 ppfd center beam. Foot print at 2 ft is ???? Outside the center beam it diminishes greatly.

For $1500 I could get about 4 of timber DIY kits and really cover a 5x5.

That thing is a rip off for sure.
 
BM9AGS

BM9AGS

Well-Known Member
mauricem00 said:
seems crazy that people are willing to pay that much for a grow light
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Meh.... I have $3k in lights.....but they're effective and not junk like 98% of the companies.

Speaking of which..... What ever happens to the guys who jump on this forum that spend $5k on spectrum king or Mars or whatever other shit light and they never post again? Lol.
 
mauricem00

mauricem00

Well-Known Member
unfortunately, like many others I've tried mars grow light and 2 DIY light and I am not impressed.I am still curious about leds unlike many who wrote them of as junk after 1 or 2 disappointing light I still like playing with them. as a PU MMJ grower I grow for myself and my S.O. and make no profit from my grow.when I get a little extra cash I would like to give these a try http://www.digikey.com/product-detail/en/samsung-semiconductor-inc/SI-B8T342560WW/1510-1324-ND/5875178 inexpensive and look like they would give more uniform light distribution and higher efficiency than the COBs people here are talking about. I think there are a few of us old geezers here who see cannabis as a medicine and not are recreational drug or business opportunity. if I had an extra $3000 I can think of a lot of better things to spend it on than grow lights
 
loftygoals

loftygoals

Well-Known Member
Their specs are quite misleading. On the 440w model they quote PAR output to be "1950 umol*". If you look closely the * means with 90 degree reflector. And if you check the fancy coloured charts it looks like they're testing at about 12 inches (you can't be certain). Well if you do the math a 90 degree reflector at 12 inches covers a 24 inch diameter circle. That's just a 0.28 sqm area. Well that lets you calculate the PAR output for 1 sqm... which is 546 umol/sqm/s.

546umol/s is a lot different from 1950! What they're doing is like getting a crappy torch, shining it on your hand 1inch away and saying "ooooh, look! that's bright".

So anyway... 546umol from 440w... you can expect 1.24umol/j

For reference:
A electronic ballast HPS produces 1.3umol/j
A 315w CMH produces 1.46umol/j
A DE HPS produces 1.7umol/j
A Fluence Spydrx Plus produces 2.08 umol/j
A Cree CXB3590 3500k CD running at 1.4A (50w per COB) produces 2.5umol/j

BUSTED!
 
BM9AGS

BM9AGS

Well-Known Member
loftygoals said:
Their specs are quite misleading. On the 440w model they quote PAR output to be "1950 umol*". If you look closely the * means with 90 degree reflector. And if you check the fancy coloured charts it looks like they're testing at about 12 inches (you can't be certain). Well if you do the math a 90 degree reflector at 12 inches covers a 24 inch diameter circle. That's just a 0.28 sqm area. Well that lets you calculate the PAR output for 1 sqm... which is 546 umol/sqm/s.

546umol/s is a lot different from 1950! What they're doing is like getting a crappy torch, shining it on your hand 1inch away and saying "ooooh, look! that's bright".

So anyway... 546umol from 440w... you can expect 1.24umol/j

For reference:
A electronic ballast HPS produces 1.3umol/j
A 315w CMH produces 1.46umol/j
A DE HPS produces 1.7umol/j
A Fluence Spydrx Plus produces 2.08 umol/j
A Cree CXB3590 3500k CD running at 1.4A (50w per COB) produces 2.5umol/j

BUSTED!
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All for an asinine price
 
wiccan

wiccan

Well-Known Member
OLD MOTHER SATIVA said:
the 600 should cover 4x4 well..have they upgraded the leds..?

i would cob it..my sk400+ is well, uhh, 'okaaaay'.........but the my cob bar is better at less w
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Hey there! OMS
I have come to the same conclusion that my Spectrum King 400 pluses are just ok I mean they throw a ton of white light, but not thrilled with the white spectrum or at least my plants are not. Could have bigger calyxes and less leaf
Though now they are paid for and in my garden.
If I may?
What would you recommend to supplement these with to make them work out? I have 4 lamps in a 9ft x 7ft space 8ft ceiling. It seems maybe they could be tweaked by adding more reds and blue, side lighting?
I would really appreciate your input.
 
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Abiqua

Abiqua

Well-Known Member
wiccan said:
Hey there! OMS
I have come to the same conclusion that my Spectrum King 400 pluses are just ok I mean they throw a ton of white light, but not thrilled with the white spectrum or at least my plants are not. Could have bigger calyxes and less leaf
Though now they are paid for and in my garden.
If I may?
What would you recommend to supplement these with to make them work out? I have 4 lamps in a 9ft x 7ft space 8ft ceiling. It seems maybe they could be tweaked by adding more reds and blue, side lighting?
I would really appreciate your input.
Click to expand...
or just more raw output....in your size space, I would be at doubling the wattage from a reliable high efficiency diode....You have 1600 watts in 63 sq ft?????? for flower?
I would want at least 2500w maintaining at or above 50% efficiency, if it was my space.....and 8 ft ceilings....something along the lines of 20 ppf / sq ft....although really if you want trees up to 7ft...I would be going to something like 30-40ppf / sq ft [about 3500-4000 watts].....:joint:
 
wiccan

wiccan

Well-Known Member
Abiqua said:
or just more raw output....in your size space, I would be at doubling the wattage from a reliable high efficiency diode....You have 1600 watts in 63 sq ft?????? for flower?
I would want at least 2500w maintaining at or above 50% efficiency, if it was my space.....and 8 ft ceilings....something along the lines of 20 ppf / sq ft....although really if you want trees up to 7ft...I would be going to something like 30-40ppf / sq ft [about 3500-4000 watts].....:joint:
Click to expand...
I went with Spectrum kings tech support, And I thought that also, just more lights, But the effect was the same with plants right under the lights, that's what led me to feel spectral issues.
 
OneHitDone

OneHitDone

Well-Known Member
wiccan said:
I went with Spectrum kings tech support, And I thought that also, just more lights, But the effect was the same with plants right under the lights, that's what led me to feel spectral issues.
Click to expand...
Just drop yourself 4 of @Stephenj37826 's Quantum Boards (1 per SK at 150W each) in the reddest spectrum with the best efficiency (3000K??)
That would give you an extra 600W of power and also utilize the lights you already have :hump:
 
Randomblame

Randomblame

Well-Known Member
These diodes looks like Osram Duris E10, same as on the latest BudMaster Growlights.
Not bad but not the best one could use and by far not the best in the world.(Datasheet below)
168 Duris E10 (seems to run only around 3,4w, 100mA per diode) plus 28 Oslon SSL hyperred but on a much too small squared PCB for my taste.
They would get much better coverage with larger PCB's and could at the same time do it without this expensive monster-copper-heat-sink, which certainly accounts for 30-40% of the price.
Looks good, but is much too expensive!
A HLG-550 would blow this unit here out of the water for sure and even saves you 450$.
Best of the world...., Hah!
 

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Randomblame

Randomblame

Well-Known Member
OneHitDone said:
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For this specific situation with such tall 10' plants they seems to work really good but most growers prefer shorter distance between lamp and canopy. For greenhouses with much headroom, yes, but I would not recommend it for use in a 4x 4' tent. If the additional diffusers are available with different beam angles, maybe.. But also with 120° diffuser the hotspot in the middle would force you to keep a big distance(>24").
Same probs as with the BudMaster lights!
 
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