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This is the (more or less) official grow log, testing the performance of the Geyapex LM-P4 COB light. Here's a link to the album: https://imgur.com/a/ZKLnV Starting Space: A 2x2x5 Des Jardin Dark Street tent, containing 2 6" clip fans The medium is Millennium Soils coconut coir, the brick...

Heya folks. I'm looking for some input from some experienced growers to suggest a good companion strain to grow along side HSO Blue Dream. I know the Blue Dream is (generally) a stretchy strain that shows a lot of Sativa characteristics, so I'm looking for something that will display similar...

Heya Rollitup. I received my test unit from Geyapex today and wanted to show off a bit, especially "under the hood". So, here's how it came, less the top foam: http://imgur.com/Q8bx1Z7 Nicely packed, there was even a small hole in the box and it didn't even come close to the unit. Now...

Rollitup, I want your input! I'll end up growing the winning entry, or in the event of problems the runner up. I've been selected as one of the testers for the Geyapex COB lights, specifically the LM-P4 model. This will be going into a Des Jardin 2x2x5 tent, making for 55w of COB per sq/ft...

Has anyone set this up using a pot? I'm trying to figure out the wiring to dim 2 drivers at once. I've got a 50k pot with a 5.1k resistor for low limit. My question is how are the positive legs connected? Do I simply tie both drivers' dimming wires together (+ to + and - to -) and the...

I just got my HLG-240H-C2100B's in and am starting the wiring process... Stupid noob question though, just because it seems too easy... for simultaneous dimming I have a 50K pot and a 5.1K resistor for the low limiter - from what I can see all I need to do is splice the + and - leads to the...

exactly what the title says, i've scoured the datasheet and can't find the outside diameter of the input/output cables for this driver. I'm looking to order a couple control boxes, potentiometers and enough cable glands to set up my lights in a professional (and safe!) manner. Again, thanks...

Just ordered 4 Vero 29 3500K "D" type chips (BXRC-35E10K0-D-73) with the HLG-240-2100 drivers to power it. This is to cover my 4x2 tent.. Just went over the datasheet (like an idiot..) and realized that this will make for about 320w at around 52000lm. Is that even enough, or should i try to...