Search results

Several have been linked to in this thread, but search dunit purple kush (just finished) and kush groove blackstar (6+ weeks into flower) for some recent info. Irishboy, LEDbudguy, and more also...

Looks to need more red spectrum, are you going to finish these as is?

The price of LED vs. HPS is cheaper because of power and bulb savings. The time it takes to recoup depends on your cost per kWh.

If you're using well water and since you commented on its calcium deposits, you should check the ppm of your water to see if that might be your issue. It seems like you have a cup full of perlite also, so maybe try some soil in your cup /w perlite just at the very bottom. I don't trust...

Bah, AA has been all about the haterade in his posts.:cuss: Although very technical, it hasn't added much of relevance to the conversation, aside from we've already been through, and I don't trust the tone. The tech behind LEDs can and should be researched on your own, but these discussions...

Fantastic, incredible, fabulous, etc., yes. The output of his grow is 180W/light though, because lights can't magically put out more energy than they draw. If he had used CFL a similarly false argument could be made, whereas with HID, people list the wattage of the bulb/ballast, not the 15-20%...

Lovely ladies, even if they look better in green than yellow. Are those rescues 3' including the pot, or 3' from the soil? On this grow, I know you've learned a lot with these lights, but is the extra weight estimate due more to the strain, or did the grow just go that much better? Low estimate...

You're definitely right, if we had access to the PUR ratings we would be much better off and all of this would be easy to compare light sources. I assume it would take some fancy equipment to get this reading from HPS, etc., but if the grow light LEDs are putting out light in specifically...

No those aren't valid comparisons, liters is volume, not distance (as I'm sure you know, but this sounds like another post about density, so please stop there, lol). Lux is a measure of light intensity, and while a direct conversion to micromoles per second would not work, you're at least in the...

Lumens is related to lux tho, and we can all afford a lux meter (and should all have one) , so you can give a rough estimate of its strength at given distances, but if we had much more money we could get a par meter. Until those are cheap, I'd say cut some slack on being loose with the terms so...

Found this today, WEBENCH tool is cool. http://www.national.com/analog/led/high_brightness

Nice buy stoney! The resistors, warranty, and heatsink design make for a design much better than the Blackstar, and for future reference you can get a blackstar for 250 shipped (user prices vary slightly), so $500 even will get 2. Looks like your most recent chop was bleached, so if these are...

Nice setup BL909. And the insulation thing is common sense, kudos. A cooler of beer in S. Cali will heat faster than a cooler of beer in Colo, but remove the insulation and you'll drink some hot beer in no time. Heh.

Thanks for the thread... That video was awesome. I learn more everyday (thanks!) and now have to figure out how to toss in some UV CFL bulbs on top of HPS, Induction, and LED. I think the induction actually puts out some UV too, and the LED panel has a UV diode, which may explain why the last...

Once the leaf is 50% dead pull it, but for me if it looks like its getting worse or on its way to death I just pull it early. This is always at the base of the plant. Depending on the exact browning/curling you're talking about it may be salt buildup. This is easy to spot because just the tips...

Do you know the pH and PPM of your well water? It looks like the bud leaves are still green-- any ill effects there? If you're in soil, try pulling all the leaves that look like that or worse, put some earthworm castings on topsoil and use just plain water for a week to see if any improvement...

Pics update?

Here's what I have started playing for my plants (and all over the house as sounds travel) "Sounds of the earth-- morning birds" . If you Google that, torrents come up for it ahem. IF anyone isn't playing music for their plants, I promise you they like birds, and you should be giving them sound...

I understand that trimming the tips of clones helps their leaves keep from wilting at the end even in humidity domes. It seems as though it allows the plant to suck water up the stem while they try to build roots to do it right. Also, its helpful to keep track of new growth. Thanks for the...

Your logic is skewed. Light does not magically convert to heat. Heat is wasted energy, or inefficiency. Like an incandescent light bulb-- they work by resistance through a coil, this resistance causes the coil to glow and emit light, but by using resistance it inherently produces lots of...