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whats the price ? For 1Watt with drivers and cooling ? Seems pretty good And hanging them closer to plants is a pretty big deal.

Look the problem is 12C, if you have a closed loop system and keep the water temprature around 25-30 there is zero condens. I am here to learn not to insulate my english is bad so I ask things pretty straight forward and answer also.

Well the best weed comes from a wide selection of regular Because northern lights is a special plant that doesnt come from female seeds. Just like al the genetics.

Then insulate me by showing me how it's done.

How ? You have a warm room with a max temp of 28C and you pump ice cold water in that room. You will have in no time condens. Show us the build and how you manage to get the cold water to the cobs with no condens.

I am getting mine in for 10€ with shipping and all talking about 50-60W pin fin sinks pre drilled.

Great thread It is good to see what ppl are doing with these lights. But why work with female seeds ?

It depends on what you understand under GG#4. But I think the One we talking about is a Special pheno Cut. Maybe if you pop Like 3 Packs regular of https://elev8seeds.com/strains/gorilla-glue/ You find a nice pheno to work with.

Do You think adding a extra citizen clu48-1212 to it will work? I came up in 304.6V in total. 4x67+36.6=304.6 I want to build 3 fixtures and One fixture Will have 3 high cri 1212 in the mix.

From a grower perspective There a Zero grow reports that Show a improve with the high cri colors. But several grow reports that tried It. There was nothing special to see Growmau did even a video grow Report and nothing. LEDs Started kicking ass when they started to output a heck of lumens for...

That's the version D 36V not really interesting.

Is this the right one ? http://www.digikey.com/product-detail/en/bridgelux/BXRC-30E10K0-C-73/976-1398-ND/6152408 Vero 29-c gen 7 3000k@cri 80 ?

The reason ppl go for 3500k Cree is becouse the 3000k is lower binned. Vero 29 dont have that so I would go for the 3000k ore maybe do a little test with the 2700k from Vero.

About what effi% we talking ? The price sounds pretty good for a 300W Driver. Btw I like your youtube channel much of good info. Can we get a peak at your garden :D

Since I stared Pin fin this bad boy keeps the air around and under my plants nice and warm the top of the room is colder then the ground ! And cools 32 pin fin heat sinks. http://greenline.nl/zwaaiventilator-plafond-55w16fb40-p-12503.html

Are you growing out of seeds ore clones ? If from seed there is no point in dimming just blast them away with your light. They will love it and grow like rockets. If cuttings you cant ofc.

Depends if the car only rides in a straight line ore also need to take corners :)

Is that mr.nice nev haze?

At the end of the day it is what this lights can do for you in the grow room. For me its simple more light in the same room with less heat = more gold.

Yes and they make things heavy, the I only reason companies use lenses is for safety and IP rating.