cfls dont suck,, they just arent the proper lighting for the flowering stage
see here
More lumens please

Yes, but considering the lumens per watt, the possibility of keeping the ballast external, and the price, I can't see using CFL for any application that uses more than 150W equivalent of HID.

For very small grows or for maintaining a mother or two, fluorescents are fine. Anyway, that was not the point of this thread. God forbid we turn another thread into CFL vs. HID.

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Lumens, lux, and adding it all up :: 16K HPS vs. CFL :: DIY Drip Irrigation :: Pack water transport

Damn! I hate that! Been burned by metal halides, too (working on aquaria). And I have this make-up mirror with exposed bulbs, but it lights really well, but you'd better NOT even brush against it or you WILL lost skin onto the bulb. Then you have to leave it lit so the skin dries up or you won't be able to scrape it off.

I don't know or understand why this would become a debate over compact fluorescent lighting versus metal halide versus sodium vapor versus high intensity discharge lighting. None of it has anything to do with the information you've presented.

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Because these arguments are usually brought up in that context, so whenever people see this information, they associate it with me trying to say CFLs are better than HIDs.

I think I just lost some hair. I'll live.

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Lumens, lux, and adding it all up :: 16K HPS vs. CFL :: DIY Drip Irrigation :: Pack water transport

16k lumens HPS vs. CFL

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Lumens, lux, and adding it all up :: 16K HPS vs. CFL :: DIY Drip Irrigation :: Pack water transport

Man you are a weedologist. I bet you got your degree in herbology! You know your stuff, I have to give you that.

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"Hey, hey, hey, smoke weed every day!" -Nate Dogg.

Need to find a way to make money in legit fashion in this biz. hrm. we all have our pipe dreams.

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Lumens, lux, and adding it all up :: 16K HPS vs. CFL :: DIY Drip Irrigation :: Pack water transport

WTF
Though given, it is irrelevent ! Lumens are for Humans not plants ! Lumens measure how we see light. Our eyes prefer green light. Green light has the most Lumens, Red and Blue the least. Most fluorescent lamps are made to look bright for humans by adding huge spikes of greeny yellow light.
Lumens only measure how BRIGHT the light appears to us.
Lumens cannot measure light useful to plants

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Any involvement in illegal activities expressed and/or implied by my communications in this forum are lies and untrue

Thanks for posting the identical post multiple places. I'll respond here as well.

If you'll notice in the text of the original post, the luminosity function spans both red and blue light, meaning red and blue both "count" toward the lumen rating.

Therefore, you may look at the spectrum of the light, and judge how much of that light is usable by your plant. If you have primarily blue and red in your spectrum, then the rated lumens result from - you guessed it - red and blue.

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Lumens, lux, and adding it all up :: 16K HPS vs. CFL :: DIY Drip Irrigation :: Pack water transport

This is true, and for that we have two other measures that are often not well understood. They are PAR (photosynthetically active radiation) and PUR (photosynthetically usable radiation). Lumens are, for the layperson, along with color temperature ratings, the easiest way to get at what we need, which is to duplicate sunlight.

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