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Is there some way to test questionable COB's I'm new to growing and COB's. I was wondering if they can be tested with a volt meter or another way before mounting on the heat sinks. Any help would be appreciated.

I'm new to growing. I want to use 4 five gallon smart pots for my grow. My question is with the fabric smart pot how do you keep the bottoms of the pot from molding and causing other problems when the water runs out the sides and bottom? Thanks for any advice.

All good questions.

I understand that and agree. I'm in the middle of my first build. I am using thermal paste but I'm having problems with the cob's staying in the ideal holders. After many attempts at keeping the cob in the holder grease ends up everywhere. I wish the cob holders would secure the emitter better...

Thank you Greengenes707, for your quick reply. I'll look for them.

Can anyone please recommend the best thermal pads for the CXB3070/3590. I appreciate all the help anyone can provide.

Thank you for your quick and insightful response. I'm finished working on them for the night (letting my frustration leave me before I try again tomorrow). I did not think it was such a touchy procedure to mount those bad boys. Thanks again.

I've been working on my light for a while and am finally mounting the cob's. I have Cree CXB3070's and Ideal 50-2234C holders. I try to mount the cob in the holder before applying the tim. The cob won't stay in the holder and pops out very easily. I do finally screw everything onto the hs but...

The drivers(3) will be outside of the tent. That is a good idea about fans cooling the drivers. Have a great weekend.

Thanks everyone for all your answers. I am hoping to get my system up and running soon.

I'm going to run a Mean Well HLG-185-C1400A at 50 watts at 1.4A for 4 CreeCXB3070's. Thanks again for your reply.

I'd like to but not sure which one to use. Have a good one my friend!

Thank you for your quick response.

I'm getting all my parts together for my first build. I'm at the part of the process where I'm wondering what connectors to use to connect the driver to the AC and DC sides of the driver. I see some people use butt splice connectors. What I want to do is to be able to disconnect the driver or...

I'm a noob to diy led builds so this question may sound dumb. However, after spending days reading as much as I can I'm thinking of building a 10 COB passive light. It's recommended that every COB has it's own driver. So, my question is, how do I connect 10 drivers to get power from my AC...

Thank you for your quick response. Your information will have me rethinking a few things in my plan.

I am new to DIY building and growing. I have spent as much time as I can on this site trying to build lights and grow medicine. One thing I learned is there is so much to learn. My state allows 4 plants for personal use. I'd rather grow it than buy it..so here I am. With the help of the many...

Thank you I will.

I am new to DIY grow lights and growing. I've spent as much time as I can on this site trying to learn to build lights and grow medicine and there is so much to learn. My state allows 4 plants for personal use. I'd rather grow it than buy it so here I am. With the help of the many "growing...

Check my recipe one page 1. It's all you need for GREAT brownies. It's the thread "Does baking brownies smell up the house?"