LED Grow Light Forum

Btw it was nice talking you, just a quick question how come traffic is so low here???

As I said, better grow lamps emit in the UV and while cheaper HID lamps for security or general lighting might need to block it for obvious reasons.

http://solis-tek.com/digital-lamps/mh10k.html

"Featuring Low Iron (Low-E) glass for enhanced UVA and UVB penetration to your plants for higher quality and yield!
Our special low iron glass allows for more UV spectrums to get to your plants and flowers. Low iron glass is composed of purified materials free from contaminants that make the glass extra clear. Usually glass has a green tint to it, these are impurities possibly from recycled materials. It has been proven that Low-E glass allows more UV light to pass through.

Why digital lighting? The Sun is high frequency. In order to make artificial light behave more like natural Sunlight it needs to be high frequency. Digital lighting makes for a higher quality of light
that’s good for all living things...

This is only possible if you have the proper lamp and ballast combination.

STK Lamps contain UVA-UVB and the upper portion of UVC.
Exercise caution when working around any HID lamp that contains UV, always wear protective lenses."
As you see the kind of glass matters too, I just had lead and iron mixed up.

Anyone that switched from fluoros to HID or LED knows that the kind of light matters, not that blue isn't blue or red isn't red it's the amount and intensity. I'm not saying people can't grow with fluoros, I'm saying that there are better solutions.

Yeah, I see where you're going but there's a euro LED grower consistently getting close to 2g/w with TINY led units that he just happens to sell. The problem is it's light fluffy popcorn flowers. I know HID growers that have gone well over 2g/w; one member here was talking about a guy (can't remember his name) getting over 2g/w with 600w HPS lights.. If you were getting .9g/w, however, that's not bad but had you optimized you probably could have done better since other people do. We've yet to see over 1g/w with the journals here but I'm sure that it's coming.

Similar to stepping up in HID wattages, more diode wattage equals more penetration, 1w diodes penetrate less than 3w diodes which, of course, penetrate less than 5w diodes, etc. While more efficient in actual draw verses LED watts it's only slightly more so. Since LED light doesn't penetrate as well as higher powered HID, it's best to keep plants smaller when using LED grow lights. You're certainly better off with larger diodes, than smaller diodes, for flowering cannabis. Also top-shelf cannabis really likes quite a bit w/sqft. Low wattage applications are limited and not as good for the full lifecycle of all plants.

There was a journal here where a member grew one plant each under the same high w/sqft; one was a SS400w LED with 5w diodes and 330w actual draw the other a 1000w HPS. Even with both lights covering 62.5w/sqft (I think), the HPS grew better, larger, more dense flowers and a higher yield. That said; if you're happy with the end product and you're getting 2g/w then keep-on keeping-on man. Even if it's a little fluffy and small, 2g/w is very efficient. The dispensaries here wouldn't pay or charge much for fluoro grown meds though if they'd buy it at all.


YMMV...

Robswift wrote:Btw it was nice talking you, just a quick question how come traffic is so low here???

Yeah, you too. It's always been low traffic, even from the start. I think the topic (LED grow lights) is too narrow, even though we allow discussions and journals from others too. I try to engage people but you can only lead a horse to water.