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If you have a good budget then here is an optimal setup with numbers: 3590 3500k at 1.4A x 16 ( 1 COB a SQ/f) is 1234PPFD AVG with 782 COB watts. 3590 3500k at 1.05A x 16 is 982PPFD with 586 COB Watts. Both are ideal setups, however 1.05A is less wattage and still perfectly ideal PPFD. I would...

What I do that has worked best for me ( I live in Canada, cold here). 24 Hours in a cup of WARM water. Then transfer to paper towels in ziploc bags. Must keep heated. If you can get a seedling heat mat from a garden store. Otherwise ontop of your console or DVR. Anywhere warm, keep them warm or...

Numbers would be less due to no reflection or little reflection. Thats where I think reflectors would benefit most due beaming the light where otherwise it would be much more lost than reflector loss.

Here is the 29 Gen 7 3000k 80CRI HERE Hope that helps. Trippy

First of all if you buy from overseas your going to get hit with a few hundred in duty and tax. Just be aware of that. Reduce cost would be to run higher Amperage drivers with less COBS. A little more wattage but higher PPFD of around 900 is ideal. Otherwise no real way to lower. Your current...

Did you find you had better penetration with reflectors? Thanks for the info.

In 5 years time we will have new better COBS and the older ones will be very cheap. (market is crashing already) Im well aware of heatinking costs. I am just putting things out there. If he wants to go passive heatsinking then yes his cost will be more. Active not so much. Threre are two sides...

Your correct, only issues is fitting less COBS per driver. Like i stated above, cost does come in at some point. 900PPFD is 900PPFD regardless of how you look at it. Just how many COBS, drivers and wattage to get there. If you have the extra cash yeah for sure grab the 50v Vero! Just wanted to...

You here 6" with reflectors or bare? What are your final thoughts? Use reflectors or not?

This is true, however youll have to factor in extra driver cost. I personally dont think efficiency is the top priority. Highest PPFD over 900 with lowest wattage and good coverage. Personally I think 1.4A or 2.1A are best bang for buck and efficiency with regards to PPFD. All comes down to your...

Update on PPFD with and without Reflectors source: @Rahz thanks mate Best seems to be 10" Bare and 11" 90 degree. There are certain applications for both reflectors and non. Hope this clears some things up. I will do a side by side in flower with reflectors vs none.

What diodes are they using? If its not Cree or another well known name you overpaid.... I would have reccomended PLC or Timber or CobKits or any other CREE COB LIGHT over EPistar Garbage. Looks like its using crap epistar chips... Setting up an arduino wifi controller is quite simple. I...

Thanks for the readings this is very helpful.

I agree with that, Seems I may just run them in my Veg tent, but Ill have to test penetration for both.

Angelinas were not in stock. I was going to hang them 18-24 anyways. I have them already so ill do a side by side with and without to see what yields more.

If your not going to group buy, buy from your country or youll get hit with big duty fees. just got hit with $200 worth myself. 36v version is what you want. I run mine at 2.1A with 6 in a 3 x 3 for 950+ PPFD You could run more COBS and less current such as 1.4A or 1.05A, but youll need to...

Thanks for the confirmation. Ill do a side by side grow at some point.

Im running a 3 x 3 with 6 Cobs at 2.1A 16" apart. Would you reccomend reflectors on all COBS as technically they are all on the sides. Was send wrong drivers unfortunatly so have to work with 2.1A. Still over 900 PPFD but would have prefered 1 cob a sq/f. Not well versed on optics as of yet...

Grow fruit, rewarding! I grow Straberries and Cherry tomatoes. I also grow exotic flowers :) Orchids are my favorite.