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MIGRO Irish LED developers say you need 12-20% blue depending on watts. Anything over 100w you need 12-15% blue to prevent stretching but anything over I think it was 60% but don' Quote me on that is almost the same as all blue lights and will hinder some production and cause stretching but less...

Ok so I won' force it in either. I'm not entirely sure if it even fits a 250w I know it does the 315w. I'll search that controller now. I don' want to large of a tent as I believe what I see from You tube videos that a lot of the light gets wasted. Even though a 6x6 tent running 1000w, there is...

I'm from the UK so the shops you mentioned are not over here :( I have tried searching for hours on Google and I couldn' find them.

Some quality bulbs on there. Have you seen any 4100k 5500k 6800k 7250k I fancy mixing it up with these colours. I've found one bulb only in 7250 and it' 2000w way to powerful for my 80x80x160cm tent. But the dam house down lol. But have you seen any 4100k tubes for t5? I doubt you will find...

I'e come across those agromax bulbs on a few 600hps systems I was looking at. Maybe mh I'm not sure now I just typed that lol. So what was your kelvin 6400 or 4100 with agro? I'm interested in what you said about more yields off the 4100.

You say t5 and 4100k ? I was looking at this earlier found they were 6400k? Am I looking at old or new bulbs? In these. Says up to 8000 lumens. Was just thinking of selling my 200w cfl's and replacing it with these. Due to noise etc and heat. Thought this may have been a better alternative. As...

Ok thanks. I appreciate the advice. I will have a look tomorrow in a local hydroponic store not far from me. Just hope they sell an RVK that was pretty quiet to be fair. What fan speed controller would you recommend I seen one earlier but can' remember the dam name now. Zypher or zypher or...

Yeah this guy is correct. I've read loads about colours and short stems and bush is 5k up but I don' know.if.there is a difference between 6500 and 7500 for example. I know to much blue hinders growth lol

So for my setup in an 80x80x160 what rvk fan size, filter and ducting would you use? I'l look on amazon/eBay for acoustic ones. But what size fan and filter ? There' a hydroponics shop not far from me so I can buy them there I hope. Next week.

Yeah true. I haven' a bloody clue if honest. All this is just mind baffling and how people figure this stuff out is beyond me Lol. Botanists at their best.

So what would you say is less noisier the ruck or rvk I'm buying one next week so need.advice. I'm buying my 250w mh and 250w hps tomorrow pay day. And running my cfl' first. But ill swap when I'm comfortable lol. But I want the 250w's here waiting for when I do.

Nicely done there. Ha it' more exciting every post I read. I'l probably have to re-read all these again to make sure I'm in the right paths lol but it' all good.

It looks strange. I looked at a video just now, s how come 4k colours varies in so many lights, one was HLG something, one was a Lumii t5 and another was so.ething else but all 4 had different visual spectrums. I though 4000k was 4000k no matter how it' produced the visual would be the same or...

Fair enough. But is there any difference in 6400-10000k I read that over 6400k just reduces yield. Not sure if that is correct or not hence the reason I'm asking from experienced growers and trying to come to an agreement wether I think it' better or not. But that's just going to be my own...

What LED do you Think this image is??

Where have you found HPS 2700k bulbs??? At best I have only found 2300k!. In cfl' I have found various kelvin bulbs from 2100-2700k but not in any HPS. Thanks for links if you have found some.

Hi, did this product work for what you said it would?

So is there much difference between using a 6400k and 8000k for example sure the blue spectrum is higher, but the growth? Would there be much difference???

My friends running an RVK. Was quite surprised how quiet that was. Especially only when you walk into the immediate room you could hear it. I've got some 45mm 70kg dense Rockwood pads to place against my wall. They are very dense and block a lot of sound out. Im hoping placing this against my...