Recent content by waveman

I would like to make the very best DIY light I can make. I have 3 HLG600-54 drivers powering 24 CXM22 COBs. Would swapping out 8 COBS for 4 QB96 boards be value added? I’d have to build on to my frame for the heat sinks. The COBS, however, are water cooled to save on room AC and heat sink costs!

Is there any value to adding a variety of color COBs for this light? 3000K 90 CRI or 2700,3000,3500? I’m getting closer to order day on these things. With 576 being ordered I want to make the right decision. Cheers

No additional AC. With the dehumidifier, passive heat sinks, 12' high ceilings, and 60" ceiling fans I'm ok. Luckily I'm up in elevation and on the east side of a hill so it's rarely above 80 degrees even in the hottest months. The room is also inside an RV garage providing a buffer that can...

Ttystikk is right. My power provider says I'm safe with 120Amps continuous. After pricing COBs and drivers and watching a lot of Growmau5 vids I have picked a new favorite design to copy or buy. The PLC-6 seems to be VERY economical and if my build will allow for DIY LED I shall copy with...

Can you experts compare gram/sqft between 66W/sqft HPS and 37W/sqft COBs?

The cxm22 has my attention. what about heat sinks? what about the question from another member above about being able to use constant current drivers and serial wiring? Even after watching hours of Growmau5 you tube I can't get my head around these COB fixtures and I want to be sure I choose...

I'm still designing the room but have been limited by my transformer to 20kW in the flowering room so I'm trying to maximize production from there with out spending 50 grand on lights and needing the propane truck to deliver gas too often. I've been recommended luminus cxm 22, vero 29, and...

If these lights will only be used as flowering lights which type or types would be the standard? I see color ranges from 2800K to 6500K

I have found the fewer trips into the flowering room the fewer problems you incur. With that being said I plan on running some pretty heavy light fixtures (84 passively cooled COBs(? lbs ea/heat sinks (1lb each)/drivers(?lbs)/frame(?lbs)) that might weigh 200-250lbs? I wonder if a screw drive...

Rahz, It seems you know what you are talking about. What PPFD would COB's running at 37Watts spaced 1 COB/sqft produce? At this level of PPFD will charging the room with CO2 be benificial vs the cost of generating it?

Yes you are correct. I want to find these things out now while still designing and I sure appreciate your help. I will need to scale down the size of my flowering room as it seems my UT 50 STD 120 transformer is my limiting factor. I would not have guessed this to be the case. The trimming...

Which chip would you be looking at? What would my load on the transformer be if 1024 COBs were driven at 37W?

I made one change to the flower room making it 24x32 (768 sqft). Unfortunately my wattage is transformer limited to about 20kW for the flowering room. How close can CXB3590 get to the plants at 37W vs 70W? I know with my old set up using air cooled 600W lamps I could get 6-8" from the plants...

I'm trying to maximize production as a Micro Tier II grower in Oregon with an existing 35'x40' shop with 13' high ceilings and an attached 10x20 room previously used for painting. An Upgraded UT 50 STD 120 transformer will allow for up to 20kW of flowering lights. With the transformer becoming...

I ran with this plant density in my 6'x6'x6' tent that had 4-600w HPS air cooled lights and I achieved good results netting 10-12 ounces every 3 weeks (tent divided into 3 16 plant areas) using "stinkbud's" aeroponic system. Plants are vegged only 3 weeks. I'm asking about CO2 levels because...