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I was using 600W HPS in a 4x4 tent (never measured the PPFD from it). Now I have 2 x 255W SANlight leds that give me around 500-800 PPFD (depending where I take the readings) according to my not so accurate meter on my android phone (PhotonE). Will have it calibrated in the future for better...

My understanding and experience with different bloom "enhancer" / "booster" products that usually consist of sugars and/or molasses and fulvic/humic acids is that they increase the size of the buds a little bit and improves the taste and increases the amount or trichomes (by either giving the...

Sorry, I think my post was unclear or confusing. I'll edit my post for clarity. I only use hydrogen peroxide in hydro. My plants started to bleach ONLY AFTER I made the switch from HPS to LEDS. I had *never* seen bleaching on my plants while I was growing with HPS. Again, for clarity: I'm now...

Hello, tiny bit of background: EU based, English is my 3rd language so excuse me if my writing is not easy to comprehend. I have experience with growing in soil and hydro. I have used only HPS before and now I'm doing my first grow with LEDs. I've also switched from soil to only using hydro for...

Yeah I run DWC. Getting tired of using the drops tbh. Old habit from from my soil days; I just check the PH when I make a new batch of water+nutes and only double checked the reservoir ph when problems had already risen. I want to stop slacking and put more effort into the dwc setup I now run...

Looking for opinions on the Hanna HI98129. It has replaceable probe and and it's reasonably priced where I live (EU).

The dude on my local growstore (quoting from SANlight brochure I'm sure) said that The EVO 4-120 lights on 4x4 don't need CO2, but if I would go for the 5-120 lights (already overkill for my tent) which according to SANlight are not designed to use in tents but rather commercial grow setups with...

Nice find, thanks! Somehow missed that even when I was searching for reviews of these lights on Youtube/Google

I was not familiar with them. I took a look at their site and currently they only have one model and it's out of stock. Thanks for the tip though!

I can order within EU. I would just prefer to buy locally if possible to avoid the possible problems that might arise from warranty issues and the need to ship stuff back with my own money. But naturally if I can find a good deal and save a lot of money by ordering abroad I will choose to do it...

Like I said. I'm new to LEDs. I used to work in a grow store around 2000-2010 and towards the end LEDs started to pop into the market and they were complete garbage compared to HPS. Due to that I lost interest and just decided to wait till the tech matures and continued to use HPS. Had another...

Hmm, this is interesting. I was under the impression that this new "EVO" lineup from them is "bleeding edge" tech and the diodes are supposed to be really good. Is the layout the only problem with SANlights?

Thanks for sharing your experience. I was considering of buying a Mars Hyrdo light, but now I can cross that one from my list.

I've been trying to find information about the differences of the "old" SANlight Q series and the new EVO series. Anyone here with experience with either one or preferably with both? I'm going to upgrade from 600W HPS in a 4x4 to a LED setup and the SANlight EVO is one of the top choices at the...

Thank you all for your responses and insights. Much obliged!

Can anyone confirm that this is enough for 4x4 as multiple sources have stated it's meant for 2x4?

Is one of these really enough for a 4x4 tent? I'm in the process of replacing my 600W HPS to a led and this one is looking really promising. I've just seen lots of people recommending this to a 2x4 tent and I wanted to make sure this is enough for a whole 4x4 tent?

I managed to get the temps down enough by turning down the radiators in that room and leaving the window open and also running the ventilation 24/7. I managed to get it's noise down by replacing the venting with noise cancelling / dampened (dunno the correct translation, sorry) duct. The...

I have one window opened 24/7. At the moment The temp is around 17C/63F during nights in the tent. I have the option to open a balcony door near the tent but that drops the nighttime temperatures to around 10C/50F and it's getting colder and colder outside, temperatures are already dropping to...

Thanks for the tips and information fellas. Highly appreciated! I did some tweaking with the ventilation and at the moment I managed to lower the max temps while having a slightly higher temps during the nights, which both seem being a move to the right direction. I will monitor the situation...