Going commercial

littlejacob

littlejacob

Well-Known Member
Rahz said:
Yea sure, it's only 100 watts on a 150 watt driver. You can drive 3 3590s (36v) on HLG-120.

>>>>If I was in US I would have consider seriously buying some of your 1400mA panel...

But you DIY don't you and I ain't buying nobody's panels :D
Click to expand...
Bonjour
I do diy because there was no other option for me when i build my first panel...now there is todogrowled in spain who made cxb panels!
I meant if i was living in US i would have consider buying a panel from you or one of the other good company here on riu...because at first I was afraid to do this on my own...I am hairdresser so I am far from electricity, hs, cob and all of this...hopefully there is guy like you here...very helpful and smart...to teach everything to guy like me!
CU
 
littlejacob

littlejacob

Well-Known Member
Bonjour
Have you ever seen a cxb grow?
It is gpw panel...lower the Amps...higher the yield!
You should get more gpw with the 1400mA than with the 2100mA...I guess 1750mA is a good compromise!
405 in the 4x4 sound good...and you will pull about the same thing for more than 1/3 less electricity!
And cob mean less nutes, so less work, the 3500ºk vegg better than a mh with twice the power, less less less heat, more natural light color (less orange) and sorry for the others...black panel is f.....g badass! (Bring it to a friend who draw nice thing and you have a customized panel tatoo style...it won't grow better but it will be so nice...I want a casing now...!)
CU
 
Rahz

Rahz

Well-Known Member
MrMoores said:
I can't seem to find the ppfd for a hps fixture to compare can anyone help
Click to expand...
You can calculate par watts based on efficiency, PPFD figures can be extrapolated from that. The Gavita has 42% par efficiency. 600 watts at 42% efficient is 252 par watts. 70% of that light must be reflected. Exactly how that's calculated depends on the average reflectivity over the lifespan of the reflector. Switching out the reflector every year would provide an average of 92.5% reflectivity yielding an average of 238 par watts.

A typical 600w HPS starts with about 220 par watts, or about 205 after reflective loss.

Going with the Gavita, that's $400 plus $120 each consecutive year for a bulb and reflector for a total over 5 years of $880, plus the additional cost of electricity. If we wanted to use the 2x T3-2100s to match the Gavita we're using 110 watts less. Add in the ballast and we're using 140 watts less. If the electricity is .12c per kWh and is being used 12 hours a day that's an additional $75 dollars per year, or $375 dollars more over 5 years. Add that to the $880 yields $1255 compared to $1060 for the LED lamps over the same period.

I think these calculations are fair and should be non-controversial. There may be other benefits including more ideal spectrum and light spread and some people feel the reflector loss for HPS should be higher, but you can see my lights are similar in price/performance to the mighty Gavita. I have tried to price my lamps based on that as well as the other LED competitors.
 
ttystikk

ttystikk

Well-Known Member
If anything, I find those calculations to be a bit conservative. Just for openers, HID lamps lose intensity over time. Perhaps the DE tech loses less, but it's there and shouldn't be ignored when figuring illumination over time.

Another advantage that's tough to quantify but easy to see is getting a given amount of PAR watts from multiple sources as opposed to only one. Light distribution is like traction on the road; it has to be effectively put to use for the power to do any good.

The relative cost is only an up front consideration. Once the COB is in place, its performance advantages become obvious.

For instance, HPS is considered the standard for efficiency, but the spectrum is terrible, causing the plants to behave positively strangely, stretching all over the fuckin' place. Better quality lighting leads to better structure and more frost. I've been running 860W CDM lighting for some time now and I can attest that spectrum matters, but it can hurt PAR performance, and as strange as
It sounds, I end up with less yield.

Finally, the heat issue. I wish people would stop and think about the AC upgrade they'll need every time they check out a DE fixture! It should be right there on the price tag; 'and don't forget to grab an extra 6000BTu worth of window banger, or you'll be growing in the Sahara!'
 
MrMoores

MrMoores

Well-Known Member
How can u send me the lights if I live in england ? I was looking on tastyled.com and wondering wot I would need to fit a 2.4 by 1.2 meter area I like to go overkill or more then required atm I have 3 600w hps in, I'd start there then maybe get more of your lights in other places I have 14 600w lights in use atm and due to increase I'd love to see the back of them motherfukas, after that I'd replace the 6 lights I have in a 3 by 2 meter tent (all my lights are 600w hps) as I really struggle with temps there due to the layout if the building inhibiting air extraction.
Could you put a british plug on your light and see how much it will cost for shipping and how long it will take if so I will 100% buy wot lights I need from you
 
Rahz

Rahz

Well-Known Member
I'm just finishing up the PPFD chart. Anyone who is doing DIY with CXB3590 at common currents can use this chart for planning. I didn't go below 1.4 amps because I'm not keen on selling anything at lower drive currents, but might fill the chart out eventually for the forum if anyone was interested. These figures include 5% lens loss so add 5 PPFD per 100 to get close to the original output. The T value represents # of cobs and the 4 digits beside it = drive current, so T2-1750 is 2 cobs at 1.75 amps and so on. The T1-1750 actually runs at 1.69 amps and the T1-2100 is 2.15 amps but close enough for fair approximation.

MrMoores,

I want to do international shipping, shouldn't take long to set that up. I use IEC 320-C14 inlets so it can be as simple as using a UK computer power cord. Packing is plain box. It looks like your current PPFD is around 1100. The chart may not be very useful for your space. I'll get back in touch via PM or you can send me an email at Tasty.

CXB3590-PPFDchart.jpg
 
alesh

alesh

Well-Known Member
Rahz said:
You can calculate par watts based on efficiency, PPFD figures can be extrapolated from that. The Gavita has 42% par efficiency. 600 watts at 42% efficient is 252 par watts. 70% of that light must be reflected. Exactly how that's calculated depends on the average reflectivity over the lifespan of the reflector. Switching out the reflector every year would provide an average of 92.5% reflectivity yielding an average of 238 par watts.

A typical 600w HPS starts with about 220 par watts, or about 205 after reflective loss.

Going with the Gavita, that's $400 plus $120 each consecutive year for a bulb and reflector for a total over 5 years of $880, plus the additional cost of electricity. If we wanted to use the 2x T3-2100s to match the Gavita we're using 110 watts less. Add in the ballast and we're using 140 watts less. If the electricity is .12c per kWh and is being used 12 hours a day that's an additional $75 dollars per year, or $375 dollars more over 5 years. Add that to the $880 yields $1255 compared to $1060 for the LED lamps over the same period.

I think these calculations are fair and should be non-controversial. There may be other benefits including more ideal spectrum and light spread and some people feel the reflector loss for HPS should be higher, but you can see my lights are similar in price/performance to the mighty Gavita. I have tried to price my lamps based on that as well as the other LED competitors.
Click to expand...
Reflectivity of a material =/= efficiency of a reflector made from the material
Best reflectors are about 80% efficient when they're brand new.
 
littlejacob

littlejacob

Well-Known Member
Bonjour
@Rahz could you let me know how much shipping to France will cost if you do international shipping...it will depend on weight...but you will have to add vat and custom fee too (over 45€ you pay vat and over 150€ custom fee!) It will cost twice the price I guess!
And it will be hard to avoid vat with the regular transporter...maybe with us post!
Good luck!
Have a great day ★
 
bassman999

bassman999

Well-Known Member
chipper68 said:
Well said.. dig it! I'm sure (at least in my case) we are the bottleneck in the equation. As it looks like commercial AG outfits are coming to market soon in some states, it'll be scary to see just how good this stuff gets.. it may get cheap enough where this is just a hobby.. I mean, if they can grow tomatoes for a few bucks, and make money.. think about it. Wouldn't change anything for me, I just like to know where stuff comes from, and is similar to our growing our own food (when we can). But, I doubt the tomatoes I grow look as nice or cost less.
Click to expand...
This is why I grow. Buying sh***y street weed almost killed me, I got pneumonia and was sick almost 3 weeks, and lost 18 lbs.
No more moldy bug infested weed with pesticides for me
 
Rahz

Rahz

Well-Known Member
littlejacob said:
Bonjour
@Rahz could you let me know how much shipping to France will cost if you do international shipping...it will depend on weight...but you will have to add vat and custom fee too (over 45€ you pay vat and over 150€ custom fee!) It will cost twice the price I guess!
And it will be hard to avoid vat with the regular transporter...maybe with us post!
Good luck!
Have a great day ★
Click to expand...
I'm going to look into it, should have something figured out this week.
 
Rahz

Rahz

Well-Known Member
BiG PuFFer said:
Is this right? Would i need 2?
Click to expand...
Hi BiG PuFFer,

Yes, 2 T4s or T3s in a 4'x4' space is recommended. Part of my design goal has always been to spread the cobs out evenly across the grow area and in a 4x4 that can't be done with a single lamp. It would be almost 3x3 be difficult to hang and adjust and use a lot of extra material. I think of it as using two smaller lamps rather than one large one and price accordingly. You can see the chart a few posts up with my recommendations in various spaces using 1 2 and 3 lamps. There are a couple rules for the x-es in the chart.

1- too small for the space
2- too large for the space
3- PPFD below 300 or above 1300
4- cheaper option with same PPFD using fewer lamps
 
Rahz

Rahz

Well-Known Member
Tasty LED has wings! Enough lights have been sold to start restocking using company funds rather than venture capital (out of my pocket). This is a good sign. I won't be quitting my job any time soon but I think Tasty LED will be around for the long run, and I am hopeful that I can tell my boss to stuff it in the next year or two. (Just kidding I like my boss).
 
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