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That is correct. Many hps-users only know hps and are not able to open their minds to other ways to generate Pars. It is almost funny: in my country I am on a forum for about a week and I have stated my result of with white leds (0,95 g/w), they don't believe it, they just don't. There are are...

Look at the datasheet. http://www.arctic.ac/eu_en/alpine-11-plus.html. It can cool max 100 watt @12V @0.16mA on active. When on 5V they will take less amps I think, but I cannot calculate it either. You could try of course and see if they start up. I have one cob 5000K @1.4A growing in a small...

Thanks!! Well, this was my second harvest ever, without adding extra ppm. So I am very happy about the result but trying to improve it further without adding extra ppm.

Well @SupraSPL. My first harvest with the new apollo's and the cxa's generated a result of 0.95 gr/watts. Hoping to improve it further. Thanks for your advice and all people in this thread who helped me.

Lol... Me too at first. I did only half what they did on the video. I took it apart and put each of the colours in a "kroonsteentje".. and it works! It costs me less time than use a special driver for each of my lightunits.

Look on the internet for "pc voeding" and you will find many for a few euro's. You have to adjust them, get the casing open and put color by color. It is all explained in youtube videos or in some sites: http://www.wikihow.com/Convert-a-Computer-ATX-Power-Supply-to-a-Lab-Power-Supply I am no...

And I thought it was magic what you were doing with the spreadsheet... ;-)

Hi Kuifje. I use a small powersupply for a pc. These devices give 12V, 7V and 5V. I have all my 70 units on 5V. Works very easy.

I use also the Artic 11's, now for a few monts. I heave read that it was not necessary to remove and to sand the surface, because you won't gain very much.

Hi captain. What are you using to generate 660 nm? The 3070 highest bin has almost the same amount of 660 than blue. I read somewhere that it was about 11%. Is that percentage enough 660 nm to switch the state back and lengthen daytime to 13.5 hours? I am running 70x 3070 AB's @ 850mA, with 2x...

Well, they have read your post and made the 301.

There are some companies in US where you can ship the products to, and they will ship that product to any location in the world. It is an extra step, cost a bit more but you can buy any product in US while they do not ship outside US.

Experiments suggested that it causes stretch, but not at what period of the growth. I could not find an experiment where 730 nm was applied after the first stretch was over. So please try.

Well, this is just my second grow. Never knew plants could grow so fast, I am still amazed when I see them after a day. Things are looking good. Last year I messed up my outside garden with vegetables:wall:. So I have a lot to learn. But with an inside garden, I know its all about mimicking the...

Thanks for everybody's input regarding the far red/ 730 nm. Did not know it was possible to speed up the flowering.

Yesterday I received the 2x 10 watt Taiwan Epileds (730nm) that I bought on ebay, shipment was faster than anticipated. I have build them in a cheap 10 watt flood light and used another driver to drive 2 of those lights. To switch the lights on when the white lights are shutting down, I use a...

The germans don't have the cree far red. @8/10 Good question, I am wondering this myself. I think to use a digital timer but every timer need to be exact on time. Or doesn't it matter if it somewhat overflows (the white and the red).

China.... they say that they deliver the best and newest leds, but you get the old ones. If its only for a few minutes a day, then it does not matter for efficiency, is my opinion. Led tech in Germany has also crees, but I don't see far red on their website. I will give them an email.

Try this: http://www.findchips.com/search/cxa%203070