coreywebster
Well-Known Member
aluminium warehouse is a great supplier, they will cut them exact for you to for almost nothing. Well worth it if you don't have the tools for the job.
Cheap as chips too.
Cheap as chips too.
its a fairly big board for the amount of diodes on it plus it looks like it has a mini heatsink on the back. still might run hot? who knows?.While we're on the subject.. Can I ask , how does the R2T strip run at 80w without sinking?
Perfect. Nice one budaluminium warehouse is a great supplier, they will cut them exact for you to for almost nothing. Well worth it if you don't have the tools for the job.
Cheap as chips too.
lol now the fun part.Now, how do I match up the strips with the driver?
From what I've read, parallel seems the safest option and so that's the way I think I'll go.lol now the fun part.
it all depends on how many strips you end up running per fixture/light, how hard you want to run them, do you want to use just one driver per light or multiple drivers, do you want to run series(less wiring but higher voltages especially if wanting to use just one driver) or parellel(more wiring but lower/safer voltages) wiring?
Well said! Get the inventronics drivers and you'll have complete control over stretch and cct as well as sunrise and sunset.Of course you can run any strip soft but the more expensive it is the worse economics. The vesta is cheap but not great efficiency so it makes sense to run soft and close to the cannopy in order to make up for being somewhat older gen tech. Which seems to go well with your situation.
The real deal is in the spectrum: 5000k / 2700k and the possibility to run both at the same time over the same driver. Imagine it as a strip that could give you the functionality of a MH, a HPS and CMH using the same driver, only requiring to do the mounting work of one strip instead of 3, and youre paying just under 10$ for 20w of chips. Also it is 90 cri, which in this case means all the 3 variants have a bit of extra red and far red which is really nice for both flower and veg. And 5000k
Is a quite extreme veg spectrum for short plants, some plants like indicas cant handle it and just grows into balls of leaves. 5000k 90cri might be a bit less so due to extra red. But basicly its a bit liike having a dialastretcch function.
Also, diode count: each strip has almost 200 dioodes per 2 foot, the eb gen3 has 120 something. Also, measurements: if your bang on 2.2 its hard to fit, including the extra bit for connecting and frameing, 2 x 4foot strips; ebgen 3 are 118cm, while 2xvestas are 112cm.
There arent really any grows to see with these but we tried them and where very happy with flower, compared to 2700k and 3000k in 80 cri.
You could do a similar build with eb gen3 for a bit more cash and buying double the amount of strips of course.
how many watts per fixture?, then when you decide on a strip we can use the volts and max current and go from there.From what I've read, parallel seems the safest option and so that's the way I think I'll go.
Ideally I want to cover a 1m width with about 6 (give or take) bars of light. They'll be 2 strips connected on one sink. so 12 altogether. Like I say that number is flexible
expensive quality diode thats reflected in the strip price, costs will add up quick if you want to buy more and run soft. nice spectrum and super high cri but at the cost of efficacy, i cant rember the lm/watt on these but they are nowhere near a 80cri samsung 301b let alone crees new 2835.
Sorry thought I'd said. 480w per fixture. Probably run at closer to 450how many watts per fixture?, then when you decide on a strip we can use the volts and max current and go from there.
So at what point is the trade off between those things a negative?expensive quality diode thats reflected in the strip price, costs will add up quick if you want to buy more and run soft. nice spectrum and super high cri but at the cost of efficacy, i cant rember the lm/watt on these but they are nowhere near a 80cri samsung 301b let alone crees new 2835.
not really, you could buy 3 times as many strips and run em super soft but they still wouldnt be close. your strip cost would obv tripple and you would have less photons for your wattage.So at what point is the trade off between those things a negative?
I mean is there a way to counter this so they could be used as main fixtures?
no the xpg3 660 acctually add efficiency.Makes sense. So the pr boost strips for example, don't lose much efficiency by adding the cree xpg3 for deep red to boost the spectrum.
What's the thinking on the 730nm chips, and in particular the emerson effect. There are a lot of strips with just the 660 chips added. Is it worth getting the 730 added as well?
One of the nice things with the 2835 chip from Cree is it runs cool, I had a boost board sitting on the bench no sink at 40 watts yesterday and really did not get that hot, probably helps the 2835 is rated to 480ma which is high for a mid power. Our recommendations on heatsinking are somewhat generic as it depends on the final build spec, but at 50 watts I would certainly be looking at 3mm flat strip of alu min, both to cool and rigid up the strip to mount, if you have some finned alu even better and always assumes a fan in the roomi doubt it. they must need a better sink than flat sheet for their 50w max?
correct, the slew of new strips and panels pushing 3umoles/j only get there with the XPG-3 Deep red which lift the entire systemno the xpg3 660 acctually add efficiency.
adding 730 is good idea but for maxiumum effect i would want them on a seperate channel that way you can run them through lights on for emerson effect then have them stay on at lights out for a few minutes to put your plants to sleep, the downside is a seperate driver and wiring for just the 730nm diodes.
Aw, getting to 90 cri with leds is almost allways down to extra reds and lower dip around 480, compare the red peaks of these spectrums to 80 cri and youll see it. Red peak around 600 on 80 cri, red peak around 625ish on 90cri.I thought 80cri was always the one with more red? This is off the data sheet but I don't know what to compare it to...
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