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Your grow room thoughts do not rescind basic physics math nor refute the OP, but thanks for playing!
I did this about 3-4 years ago and am not going to replicate the math as it was quite tedious taking into account quantum absorption for each...
I have got two very nice harvests so far. Sorry, no GPW or yield measurement as this is just for personal stash. Certainly superior to T5s and my...
[ATTACH] This is my DIY using the smaller (but similarly efficient) CXA2520s. Note that I use a separate power supply/driver for each LED....
There are so many different mixes, ratios, ideas about when and how much to add of each element that it is beyond confusing. What I propose is...
Not sure how the minimum lumens can be greater than the typical lumens. Very sloppy documentation. 140 degree viewing angle is quite wide for...
Ima go check... Max rating is 220 watts. Actual draw is 141 watts. Figure maybe 4 watts each for the drivers, so about 129 watts going to the...
Here she is basically finished. I call her PAM (Photon Assault Machine). [ATTACH] [ATTACH] Here she is all wired and fired up. Note the...
Will try the 48 hours of dark thing and if nothing within a week might just toss her. I have had pure sativas take forever to finish, but they...
I have four ladies in my flower room about 6 weeks into flower with maybe three weeks to go. Three are budding normally, but one just keeps on...
Naw, you said basically the same thing with a bit more detail. For the real fun go see my uneducated fans on the 'Overdriving T8s' thread....
One reason CFLs put out 50% less lumens than T5s is because of the disposable and relatively inefficient built-in ballasts. That inefficiency...
Yes, fuck education and knowledge. All of the below websites are working in cohorts with me and Big Oil....
Try to make sense. The fixture makers do not gain or lose money from bulb longevity, so it is a non-issue.
I can't challenge your data without seeing the whole set-up, but here is something to think on. In the marketing of horticultural fixtures and...
You can't just look at the bulb specs. Cheap magnetic ballasts for 150w HPS sometimes use 100 watts in waste heat alone. The ballast specs are as...
Fluorescent lights have been around for about 80 years and have evolved through many iterations. The crop of bulbs/ballasts today are OPTIMIZED...
I would if you could explain how factual data = arrogance and how cursing and name-calling = truth.
Of course plants have a figurative light meter. More light up to saturation = greater growth as more photons make more sugar for the plant. This...
Those reflectors are inadequate. See how your whole room is lit up? Those are photons not going to the plant. Do a search on Swami and Bucket...