Recent content by LED Cultivation

It's not an advertisement. We have nothing for sale. A DIY COB array, as I recommended, would outperform your choice by a great margin. To answer your question, do not veg with your 150W HPS.

We are making strong progress in translating the performance of LED arrays into an easy to understand format for any layman to observe. It seems like a foreign language, because concentrating a given area with a uniform saturation of light (Photometric Uniformity i.e. 'PPFD') is a relatively...

They are just trying to say you overpaid. Though, if you love the piece having already paid; you did not overpay. Enjoy your piece but be vigilant for better deals on the next one bongsmilie

I'm happy you were able to transition into replacing pharmaceuticals with cannabis products. That is a very valuable life improvement that will serve you well. Depression is very tricky, I'm happy you've found the drive to be active and do the things you enjoy. We have things set up to operate...

I'm sorry for your health condition. I just don't want people to think they can't afford to use LED lighting because their setup is a small home grow, or they are worried it will take forever to recoup their investment. I still do not understand ttystikk's comment in regard to not purchasing...

How would you express a percentage based on a post with no quantifiable data provided? I'm speaking about the cannabis industry as a whole. If you are too, I hope you are aware that this industry has cared very little for "the Feds" opinion, for quite some time. Indoor operations are building...

False. That amount of time has been spent by several large companies already, before turning profit (as is typical in large industries). 2 years is not a long time in big business. Now for small-scale, how would a scenario exist where it takes two years to profit from your investment in an LED...

Please see the link I provided. Note the average excluding outliers like Hawaii. According to the data I've linked, kWh rates are much more stable than you believe. Noting a simple range of lowest point to highest point is not appropriate when there are clear outliers in the data. Math is not...

I would say that is more of a blanket statement than my post. I would also say the kWh range in the US, at-least, does not necessarily "vary wildly" - https://www.electricchoice.com/electricity-prices-by-state/ Do you have an example for an area in the US which wouldn't benefit from switching...

Simple mathematics helps to understand that LED arrays are absolutely worth the mark-up. They are actually cheap, when you consider all of the factors which influence your operating costs. Even if you're small-scale, the ROI of a proper array is quick, and the qualitative benefits of making the...

Hey RIU, we've been working hard, and would like to show you some of what we've got going on. A while ago I posted our algorithm which generates Proportional Intensity values for lighting arrays using free software...

Would you go into specifics regarding that experiment?

We've looked into various instruments used by third-party labs, so I'm familiar. I'd be interested in playing with such tools in the future. It's nice to know fancy equipment / procedures isn't always necessary to come up with useful calculations, though. Computers are quite the instrument in...

COBs are very strong, especially driven at 75 watts. You'll notice mounting distance is more about spread of light than anything, once you've got your environmental control dialed-in.

I hope that you all find enjoyment through observing these presentations! PPFD is an incredibly important principle. And as such, properly defining it is of utmost importance. Algorithm for Measuring Efficacy of Lighting Arrays (PDF): http://s000.tinyupload.com/?file_id=99492409749749073947...