LED Growshow

Somewhere in Amsterdam I developed a Led panel system for growing Marijuana with LED's, these webpages show you the different tests I did with just a few plants in a 60 Watt, 40 by 60 cm system. These panels are the very first available that can actually:

Grow Marijuana with only half the electrical power of HPS.

Please note that this site is for educational purposes only.
Growing Marijuana is prohibited in a lot of countries. Don't grow Marijuana unless you are sure it is legal to do so.

Finally, You can purchase the LED Grow panels I developed

These pages are sponsored by the Bonsai Hero Trimming Tool

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September 10, 2016, dry weight 36 gram, maybe a bit too dry, but still not a lot of bud from a 50 watt Led. So far, I haven't been very succesful in testing the CXB3590, haven't matched the great results of other people.

August 29, ready to be harvested, the plants and buds look good, they packed together searching for more light, must be because of the Stella-HB lens, creating a hotspot.

August 4, looking very well, about 5 weeks into flowering, bud are getting thicker.

July 9, switched to flowering a week ago, now growth is slowing down. Plants are nice and bushy, on their way to a great result?

June 29, because the result wasn't as expected, I planted new ones to do another test. The strain is identical, but I'll grow only 5 of them, this has to do with the legal situation here in Holland; 5 are sort of legitimate.

April 16, they were ready, so I took them out. Quality is reasonable, not great. My guess is the dry weight will be close to 100 gramm, which would be a good result for a single led :-)
PS, April 25, the dry weight turned out to be 30 gram good quality, 50 gram bad, without resin. I don't know what caused it.

April 12,almost ready, the top leaves dried out and crumbled up, while most of the lower buds where still white, strange.

April 2, With about 10 days to go, the buds are getting thicker, looking pretty good. But I still don't know if CXB is a good alternative for the multi color led boards, for that a fresh Set-Up is needed.

March 11, The plants really like the CXB3590, please note it in the picture, the lens is still simply clamped to the heatsink, it is fine like this :-). Flowers are finally booming, but because they started flowering under a less efficient panel, I won't get a record breaking harvest, but I will get a good impression of the CXB capabilities. There are 4 weeks to go.

Here is the COB again, now with a Ledil Stella-HB silicone lens, it give a better spread of the light. So, for this set-up this is "the panel".... The plants seem to love the change, the measured amount of light is over 50% higher than with the XTEAWT, while the power consumption has dropped to 85 watt... (plus about 10 for the supply). The light is, however, mostly in the yellow/green region and I would prefer more Red, maybe I'll repeat the test later with a lower colortemp version, at the expense of losing some Lm/watt.

Here is the CXB with a Ledil AngelinaW reflector mounted on a 15*15 cm heatsink. This stuff might very well be the future, but for a panelbuilder, there won't be much left to ""build" :-)

March 8, decided to make a change, the XTEAWT proto goes out and I'll continue this Set-up with a single CXB35900N0HCD35H. This is a remarkable (or is Unbelievable a better word?) Led COB array, running at 37 Volt, at 2.4 Amps, that is 85 watt, it produces 12.000 lumen, with a color temp of 3.500 K. That is over 140 Lm/watt, even at 85 degrees temp! Absolutely amazing.

March 2, the plants look rather well, but..... I switched to flowering February 6, 4 weeks ago. With this kind of wattage, flowers should be bigger by now, do you agree?

February 4, 2016, I still want to know how well a White panel would perform, so I've build this prototype with XTEAWT Cool White, Warm White and some XPE2 Reds. The Whites can be loaded up to 5 watt, that's why a tiny panel like this has a total power comsumption of about 130 watt, power supplies included. There is a rather strong fan installed to blow the heat away. The plants have already done their vegging under a normal HansPanel, the test of the prototype is starting today :-)

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