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I think they arrived about 10 days after ordering. Germany to Spain via dhl...not quick but its ok. Yes....what I have notice is an increase in leaf size..but I have to wait until the crop is ready to make conclusions… What is nice is at this efficiency level...we can veg with about 120 watts...

I am going in a expensive but efficiency way… 6 strips total , 3 strings in parallel every string has 2 strips in series... 100 watts total for (588 samsungs!!!) every strip is about 800ma powered...and in every string 6 osram Deep red square and 2 far red well distributed . for the reds and...

I have bought 6 strips and built a lamp with those and 18 square osram Deep reds and 6 far reds..what can I say…. those strips are awesome… gonna buy 6 more son. If 2 are joined they are about 98 cms long which are perfect for a 1 meter square tent… light coverage is perfect at the edges.

Yes Far red can be used for several things.. I use EOD from 2 or 3 week of flowering time trying to avoid stretching problems..but as I have some pure uva leds..maybe I can use the EOD from the start of flowering without no far red stretchting at all if I use the UVA at the same time to...

I am not talking about Emerson effect..Emerson effect happens with the addition of Deep red and Far red.....The EOD is only the addition of Far red with all the other lights off a few minutes at the end of the day..Think you did not understand my question….

Hello all, I have two led strips of 365 nm..they spread the light nicely over a 3x3 área about 30 watts total. Also I have two more strips with far red..6 leds each one about 16 watts total. I use the far red strips for general suplementation and EOD. My question is...Can I run the UVA leds at...

I have built recently a new lamp made with samsung lm301b 3500 K about 100 watts plus 24 watts of osram square Deep red and 8 watts of osram far red ..from led tech (germany) I run the far reds all day long not only for EOD. I have notice an increase in leaf size but normal stretch. I have add...

As a proud spanish I have to agree...but… If you grow you have to be cautious cause is still not legal in spite some bad informed people would say. Lot of crops are being robbed by thieves..specially countryside crops..thieves are usually related to gipsy people which seems to have specialized...

Hi ..seems that the German store led-tech has a new strip. https://www.led-tech.de/en/50cm-Alustripe-with-98x-Samsung-LM301B-LEDs-3500k-and-connectors It seem similar to this one, but with connectors https://www.led-tech.de/en/50cm-Alustripe-with-98x-Samsung-LM301B-LEDs-3500k But...what I dont...

Has anybody dimmed a meanwell driver this way? I am interested...thanks . I asume that the sonoff 4ch is powered by the DC input...

Another interesting research about stomatal opening..this time related to UVB light.. It seems that at least in beans… the stomatal aperture is driven at its maximun by UVB plus Deep red... so photosynthesis at its máximum (goal) in veg...can be obtained adding some UVB (and Deep red plus...

Sorry I dont know if I am wrong..but you are saying: "My belief is that because they are high in green light this opens up stomatal to absorb any photons they can get" Stomata does not absorb photons….stomata relates to gas exchange..CO2 absortion.. Photons are absorbed by pigments..like...

Is not only the heat...it seems that affects stomata throught other mechanism...phytochrome changes..etc...

I went to the first link you provided and...whoops :) interesting 451: Unavailable due to legal reasons We recognize you are attempting to access this website from a country belonging to the European Economic Area (EEA) including the EU which enforces the General Data Protection Regulation...

I was thinking the same while was reading it...

Not exactly...seems that benefits for Far red addition are bigger when you are using a not balanced spectrum like Blue/red.led lamps. A wider and more balanced spectrum like a Warm White 3500 K has some far red in it and the benefit of adding far red is less. @Randomblame posted a very concise...

Yes, and it seems , at least with tomato plants, that Red/Far red ratio can be higher than sunlight and still obtain benefits of far red. what I mean is that we dont need too much far red..so less problems with elongation. What we have to find is what Red/Far red ratio is the best in veg and...

Another recent study confirms that Far red need to be added to our lighting récipe https://www.frontiersin.org/articles/10.3389/fpls.2019.00322/full

And a couple more just few days before harvest time....

I have a strain since lot of years ago that looks exactly like yours :)