TriPurple
Well-Known Member
MCOB Multiple Chips on Board ....Anyone try these yet ?.... really sounds like a good thing. Here's a link http://www.cobgrowlights.com
MCOB LED? from cobgrowlights
- Thread starter TriPurple
- Start date
garbage,
BobCajun
Well-Known Member
Those kind have been around for a while now. They're alright if you want a mixture of light spectrums. Most are made by no-name Chinese companies and are of questionable quality though. They won't be as cost effective as CXB COBS either, since those are the most light for the money currently available in LEDs. I have no personal experience with the MCOBs but I'm pretty sure the CXBs would be the best buy and produce at least as good results. Maybe add some pure red LEDs or COBs, if you can find them, with the white ones and have a separate IR light for 5 minutes end of day. For UVB, reptile CFLs seem to be the only practical source currently. UVB LEDs are very costly, because few are made I guess. UVA and UVC ones are much cheaper.
wrong, these multi-3w single diodes on a chips are of the crappiest quality around. they burn out and have poor efficiency,
if I was restricted to 3w chips I'd rather get single diode units, as in apache. or even the cheap Chinese UFOs.
BobCajun
Well-Known Member
Okay, as I said I have no experience with them. I can see how they could burn out easily though, because they mix a bunch of different types of LEDs and they will have slightly different power drawing characteristics. When the weakest link LED burns out, the whole thing will stop working.
BOBBY_G
Well-Known Member
some are more perfect than others
bicit
Well-Known Member
.....ACTION NOW!
Lenny Scroggins
Well-Known Member
Can't wait to see the do it yourself ......MCOB..... builders at work.... MCOB will be the next advancement
hey usually vendors need to pay for a blatant advertisement. @sunni
BobCajun
Well-Known Member
Seems to work well enough. If they were like dirt cheap you'd probably sell some. With a price similar to known reliable COBs it may be hard to compete. Even with a warranty, it's a lot of hassle. The 200w one isn't terribly overpriced though. May sell a few.
MCOB
Member
Yeah prices are kind of high but if you bug them about replacement parts or defects they go to great lengths to help you.
Kind of supposed to keep this on the low down but... GrowthStar has a new COB coming out that is cheaper than the 200W and twice the watts. They want to test e.g.blurble vs white light to see what is better for growing mmj before selling but I'll be getting one soon to play with. It's got a cheaper case design similar to Mars but the chips are better. Pretty stoked.
Drin King
Well-Known Member
ACTION NOW!!! i got 2 new leaves a week, this amazing, many thank you, good cob, DONT BE SCARED, ACTION NOW
Drin King
Well-Known Member
the philosophy of this company is to come to an established small community of people yearning for advances in the their field of tech, lie about it to make a quick buck and dissolve when people realise its fucking shit.
Pretty much doing a massive shit on its consumers then vanishing.
Dont fuck about with this shit, the fact that MARS is their benchmark for improvement says it all
Pretty much doing a massive shit on its consumers then vanishing.
Dont fuck about with this shit, the fact that MARS is their benchmark for improvement says it all
BuddyColas
Well-Known Member
OK, I read the ad. Call me simple, but explain to me how your photons are so much better than the 3500K photons coming from my 50 plus % efficient Vero 29s I am running now. I want to get excited about this next big rage in led lighting...but I'm just not seeing it...yet. Help me out.
Last edited:
BobCajun
Well-Known Member
LEDs are expensive enough when you buy them from a parts place and assemble them yourself. Giving a retailer his cut on top of that gets a little ridiculous. I wish GrowthStar well with their business. Probably not going to find many takers on this particular forum though because it's mostly DIY oriented people and we know how much stuff actually costs. One thing I don't like about the MCOBs in these lights is that the IR is on all the time rather than just 5 minutes after lights off, so it could cause some stretching. Separate small IR lights would probably be better.
Last edited:
MCOB
Member
Ya true enough. I'm too busy growing to do the DIY bit. Not sure about the IR. Perhaps incremental benefits that won't make it cost effective to the buyer. I grow fine with the lights as is and have thousands of photos to attest.
I was the one that suggested they use a simpler side vent design but keep the Web vent backing.
the side vent case cost to produce was higher and people want a light that costs a bit less. The grow results will however be improved.
Mars is definitely not a benchmark for success. The GrowthStar are better than any Mars and I'm not going back to that nor HPS. I was just referring to the flat side vent that are not louvered like on GrowthStar 6X MCOB.
The new light is MCOB and with more attractive specs than the current models, even DIY growers can afford to try one for themselves.
If you deal with China then yes you will get shit on. So deal with a North American company that will back their customers. I learned this the hard way. Chinese companies lie about specs because their sales reps are trying to meet their sales quotas so they don't lose their jobs. This is a flawed business model that won't change anytime soon. Short term thinking.