Gopher
Member
I hope I have put this in the correct spot, it seemed like the appropriate one to me. I also hope I won't get flamed too badly for not showing a pic of the light or giving any technical specs, I am testing this light for a local lighting company (we have been working on LED grow lights for over 2 years now) and they have asked me not to show pics or give details. As I don't want to lost the opportunity to play with such wonderful toys I prefer to adibe by their requests.
I am yet another AN refugee and was journaling this grow on there but had to find a new home when they shut down their forums. Initially the grow was going to be a comparison of a 1K HPS against a 355 watt LED array but we suffered numerous problems with the LED early on and the poor plants spent more time with no light over them as they did with it over them. For the first 3 weeks of flower the only light they had was what splashed over from the HPS on the other side of the room. At that point a decision was made to go with a 125 watt LED, which we believe will perform as well as a 400 watt HPS.
I guess some details are in order. I grow in a (almost) 5' x 8' sealed room with full environmental controls including CO2, which was kept at 1400ppm. I grow fully organic using a hot soil mix comprised of a bag of 2-8-4 organic fertilizer, 2 bags of worm castings and a bale of Sunshine Mix #4. I reuse my soil repeatedly by refreshing it with half the amount of ferts and castings used in a new mix. I did run into some ph issues as being the stoner I am I kept forgetting to add lime when I refreshed the soil (this is the 6th grow for some of my soil). I top dress on day 1 and day 28 with high phosporus bat guano and this time around gave them unsulphered molasses in weeks 3, 5 and 6. They get Diamond Nectar and KarboBoost with every watering until the final week. I foliar with Diamnond Nectar every other day through the first 3 weeks of flower.
Here is a shot of the plants at around week 3 when they first got the new light over them.
I am yet another AN refugee and was journaling this grow on there but had to find a new home when they shut down their forums. Initially the grow was going to be a comparison of a 1K HPS against a 355 watt LED array but we suffered numerous problems with the LED early on and the poor plants spent more time with no light over them as they did with it over them. For the first 3 weeks of flower the only light they had was what splashed over from the HPS on the other side of the room. At that point a decision was made to go with a 125 watt LED, which we believe will perform as well as a 400 watt HPS.
I guess some details are in order. I grow in a (almost) 5' x 8' sealed room with full environmental controls including CO2, which was kept at 1400ppm. I grow fully organic using a hot soil mix comprised of a bag of 2-8-4 organic fertilizer, 2 bags of worm castings and a bale of Sunshine Mix #4. I reuse my soil repeatedly by refreshing it with half the amount of ferts and castings used in a new mix. I did run into some ph issues as being the stoner I am I kept forgetting to add lime when I refreshed the soil (this is the 6th grow for some of my soil). I top dress on day 1 and day 28 with high phosporus bat guano and this time around gave them unsulphered molasses in weeks 3, 5 and 6. They get Diamond Nectar and KarboBoost with every watering until the final week. I foliar with Diamnond Nectar every other day through the first 3 weeks of flower.
Here is a shot of the plants at around week 3 when they first got the new light over them.
. What do you notice with the foliar of DN as opposed to not???
is it really a LED grow?
