Sunlight supply agro led sun par 390?

Cletus clem

Cletus clem

Well-Known Member
just left my local shop and they got 2 of these in. Not much info on them though! Not spectral distribution or ppfd. Says 528 nichi .78 watt chips with MW drivers. Im guessing thats what theyre being driven at? Not familiar with these diodes, new to this led game. Comes with interchangable 90° and 120° optics. Seems like a well built unit. Looks spectrum king 400+ ish. Bright as all fuck. One of the owners was taking one home to check out so i convinced him to crack it open and fire it up. What say you???
 
Cletus clem

Cletus clem

Well-Known Member
CobKits said:
http://sunlightsupply.s3.amazonaws.com/documents/product/906410_Instructions.pdf

130 lm/W at 5000k no thanks, id buy 2 315 CMH instead for the same price
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For the sake of playing devils advocate, wouldnt that be about double the power consumption though? And how relevant are lumens? Certainly no points awarded to sunlight supply for their lack of readily available information on their product that one would hope they have before making it available at a retail level.
 
CobKits

CobKits

Well-Known Member
Cletus clem said:
For the sake of playing devils advocate, wouldnt that be about double the power consumption though? And how relevant are lumens? Certainly no points awarded to sunlight supply for their lack of readily available information on their product that one would hope they have before making it available at a retail level.
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at 5000k? highly relevant
 
Cletus clem

Cletus clem

Well-Known Member
CobKits said:
at 5000k? highly relevant
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I just frequently hear growers who are passionate about leds saying that we shouldnt be looking at lumens/watts. Spectral quality, par and ppfd are the factors we should be looking at. Are you saying at 5000°k lumens and ppfd should be more relateable then they would be at say 2000°k? Just trying to learn!
 
Rahz

Rahz

Well-Known Member
Knowing the lumens per watt at 100% efficiency for a given color temp will allow someone to estimate the electrical efficiency. Par watts and PPFD are better if the info is available. Spectral quality is important but the jury is still out on what's best for the plants we grow. Personally I would't use 5000K for flower. It wouldn't even be my first choice for a veg lamp.
 
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CobKits

CobKits

Well-Known Member
Cletus clem said:
I just frequently hear growers who are passionate about leds saying that we shouldnt be looking at lumens/watts. Spectral quality, par and ppfd are the factors we should be looking at. Are you saying at 5000°k lumens and ppfd should be more relateable then they would be at say 2000°k? Just trying to learn!
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no im just saying 130 lm/W is weaksauce for 5000k, which generally has higher lumen/watt numbers due to its spectrum

at that color most people running cobs at usual current are getting 160-175 lm/W at chip level and 150-160 lm/W at system level (140+ with optics). like you could run the hell out of a few quantum boards and get that performance, like maxing them at 150W each would still do better
 
CobKits

CobKits

Well-Known Member
also that as rahz stated above neither 2000k or 5000k are really great spectrums for our application. and their data is scarce. you can kind of tell whos serious about engineering a great light (fluence, etc), these guys jsut seem like bandwagoners who are trying to get a product to market cheaply
 
Cletus clem

Cletus clem

Well-Known Member
CobKits said:
also that as rahz stated above neither 2000k or 5000k are really great spectrums for our application. and their data is scarce. you can kind of tell whos serious about engineering a great light (fluence, etc), these guys jsut seem like bandwagoners who are trying to get a product to market cheaply
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That was my initial thought when i left the shop and dug into it a bit. Before even looking into it further my first thought was spectrum king 400+ is on sale right now for the same price. While it is higher in consumption, for a manufactured light in the long run is a better buy. It also seems like that was the light it was targeted to compete with. I will look into fluence. I dont think ive checked them out yet. Been looking alot into diy stuff. As far as pre built is concerned, spectrum king and black diamond perfect sun have caught my eye but would ultimately like to build my own using cobs or qb
 
Fauxton

Fauxton

Active Member
It's a good light (based only on its components and what I perceive to be the design). To be clear, though, it is a high bay light rebranded as a horticultural light and with a jacked up price. If this is what you want, I think you'd be better off searching for a high bay light from elsewhere like https://www.1000bulbs.com/category/high-bay-low-bay-commercial-lighting-fixtures/ (there may be better/cheaper sources). You literally may pay half the price for the same amount of light (likely not ip65, though, which for most people is fine).
 
topher73

topher73

Active Member
Cletus clem said:
just left my local shop and they got 2 of these in. Not much info on them though! Not spectral distribution or ppfd. Says 528 nichi .78 watt chips with MW drivers. Im guessing thats what theyre being driven at? Not familiar with these diodes, new to this led game. Comes with interchangable 90° and 120° optics. Seems like a well built unit. Looks spectrum king 400+ ish. Bright as all fuck. One of the owners was taking one home to check out so i convinced him to crack it open and fire it up. What say you???
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That is nothing more than a high bay light and you can get them on ebay for 100 bucks or so. For that price that light should have cree chips in it. You might want to check out timbergrowlights they have ice lights using cobs and you can get them assembled if you don;t want to DIY. I am pretty sure Nichi chips are dirt cheap/ low quality.
 
CobKits

CobKits

Well-Known Member
not a fan of the light but nichia are good midpowers ,at least on par with crees current offerings
 
CobKits

CobKits

Well-Known Member
cree is apparently poised to make a big move in the mid power segment though. i hate making posts like the one above because everything moves so fast
 
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