Spectrum king led

Dude, seriously, my goal is to publish EVERYTHING I do eventually into the easiest DIY set up, that is modular and any monkey can put together and re-arrange at will.

These ready made lights hold no water against DIY COB lights and I want this knowledge to be OPEN!

Of course, everyone needs a dream and mine is still "in transit" (just got the Mouser update!!!)

I have the China made version ( 500w with hps hood) going right now on 14 4 foot OG's right now. I am a couple weeks in and the stretching has stopped. I lollipopped the bottom 16" and had to use 3 nets to support them. These got way bigger than I planned. With my hood, I get a par of 854 @ 24" and 220 at the edge of 4'. I plan on testing different reflector angles to see if I can get stronger #'s at the edge. I did test the light with the cone reflector, with no reflector and the hps hood and the #'s with no reflector were much lower than with the hps hood. So I think I should be able to get even better #'s over the whole 4'x4' canopy. I'll get a pic of the canopy up later.

nevergoodenuf said:

I have the China made version ( 500w with hps hood) going right now on 14 4 foot OG's right now. I am a couple weeks in and the stretching has stopped. I lollipopped the bottom 16" and had to use 3 nets to support them. These got way bigger than I planned. With my hood, I get a par of 854 @ 24" and 220 at the edge of 4'. I plan on testing different reflector angles to see if I can get stronger #'s at the edge. I did test the light with the cone reflector, with no reflector and the hps hood and the #'s with no reflector were much lower than with the hps hood. So I think I should be able to get even better #'s over the whole 4'x4' canopy. I'll get a pic of the canopy up later.

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You mean this one? Chinese Spectrum King

I had this one made for me in the CCT's I wanted. It also uses Cree, but I don't think his uses Meanwell drivers.

nevergoodenuf said:

I had this one made for me in the CCT's I wanted. It also uses Cree, but I don't think his uses Meanwell drivers.

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Cool would be interested to know who made it up for you and the options you had

Shipping on single one time samples are 20% to 30% of the cost of the light. If I order more ( after this test) I will have to have the newest led.

nevergoodenuf said:

Shipping on single one time samples are 20% to 30% of the cost of the light. If I order more ( after this test) I will have to have the newest led.

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That's an interesting option right there......I put the model number into google and came up with a supplier on Alibaba. Not bad pricing either.

Be careful of the distance necessary between canopy and fixture. I think it's significant, perhaps more than you could get in a typical tent. @nevergoodenuf what is the optimal distance to canopy while getting 4x4 coverage?

The highest price you see is the one with Cree and meanwell dimmable drivers

I get a 4'x4' footprint @ about 22". My tops are @ 18" from the light with the main canopy @ 24". I still plan on making a different reflector.

With this reflector I can get a lot closer to the canopy with a better light spread.

nevergoodenuf said:

With this reflector I can get a lot closer to the canopy with a better light spread.

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There was a thread recently about DIY reflectors. @stardustsailor showed some software for modeling reflectors. Way above my understanding. I think you'd find the answer there if you can grasp some of the words I couldn't.

My plans are to set the light up 20" from a wall and have a par meter set up at the wall 2' off center. Then play with a few different angles and lengths of reflectors until I get the highest par #'s at the edge. That's the most I'm going to do.

nevergoodenuf said:

Shipping on single one time samples are 20% to 30% of the cost of the light. If I order more ( after this test) I will have to have the newest led.

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What are the "newest" leds they are offering in this package???

PSUAGRO. said:

What are the "newest" leds they are offering in this package???

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Flip Chip Opto sells the fixture with one of their big ass chips in it...not the biggest though. I imagine that sink is only capable of so much and 960w of mediocre efficiency at best, seems a little overboard for passive anything imo. Data sheet attached below.

I went to a convention a month or so ago...pretty much every manufacturer from china(shenzhen in particular) has their own "version" of that light. 90+% of them offering the xbd model that spectrum king offers. I also don't really think that you need a huge clearance for plant safety/happiness. You need the clearance to get coverage.

Numbers are say it all

Greengenes707 said:

Flip Chip Opto sells the fixture with one of their big ass chips in it...not the biggest though. I imagine that sink is only capable of so much and 960w of mediocre efficiency at best, seems a little overboard for passive anything imo. Data sheet attached below.

I went to a convention a month or so ago...pretty much every manufacturer from china(shenzhen in particular) has their own "version" of that light. 90+% of them offering the xbd model that spectrum king offers. I also don't really think that you need a huge clearance for plant safety/happiness. You need the clearance to get coverage.

Numbers are say it all
View attachment 3375146

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I remember those #s you posted when it was briefly considered a 1k swap...........lol. I kinda thought that nevergood was implying he could get them built with newer/more efficient chips????

did you see anything promising at the convention??....you know I had to ask

I haven't really looked at what to use next. @greengenes- At 3 feet with this hood the par # is 420. Didn't take measurement to the side at that distance. I what so see what this light will do before I consider more. So far they are very happy.

nevergoodenuf said:

I haven't really looked at what to use next. @greengenes- At 3 feet with this hood the par # is 420. Didn't take measurement to the side at that distance. I what so see what this light will do before I consider more. So far they are very happy.

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I don't think it's bad light or something to be talked about with "china lights". But it is a 400w and under light...1K's should not be what it's compared to imeo if it wants to be valid and worthwhile comparison. I'm just not a fan of the design, but the components and build quality that I saw from china were good. It's spectrum king that I don't like. I did better at 24 than 36 for the most part. But I only made a chart for 36" since that is what their big statements come from mostly.

I should have put it this way. I don't want folks to give their hard earned cash to spectrum king when literally the same identical thing, chips and all, is available from overseas at a significantly lower cost...and by people who understand the light itself far better than SK. Same situation with apollo resellers...go straight to the source.

RS's panels are a little bit over 400W and would probably be able to take on a 1000W hps!

churchhaze said:

RS's panels are a little bit over 400W and would probably be able to take on a 1000W hps!

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I don't agree with that...and either do the numbers. We are looking at ~200PARwatts from either of his design. A design that is only 8"wide. 1000hps doing 360-400PARwatts. And a massive reflector(32"x41") to make photons come from pretty close to directly above the edge of the canopy...instead of having to make it through the main canopy at an angle to the edge like led would have to in a narrow design. Even if we count it with major reflector losses...1K's are still getting ~280-300PARwatts to the canopy. But vertguys will not be dealing with that so either should we in comparisons of tech.
Are RS's panels technically the most efficient light when looking at strictly components...yes. But total output is not where it needs to be imo for a 1 for 1 switch. As a whole unit I don't think it will quite hang with a standard 1k, and then think about DE. Do we think that 400w of LED produce 2-3lbs??? I don't. I know 6 grower personally getting 2.5-3 per light in their gavita rooms. No matter how into led's I am...I don't ever try and tell them what to use. Until I hit the 2lb club with an LED...I just do what I do and if people like it then great. So until people start smashing hps total yields regularly and from multiple people... I don't think we should start thinking about <600w led's as 1K hps replacers.
RS plans to run 2 panels per 4x4...he knows what's up.