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Sure, use coconut oil instead of butter. I have a slow cooker and slightly bubble the oil/water/cannabis for about eight hours. Use plenty of water and chill the mixture after simmering and straining--infused fat will be on top. Search cannabutter for a step-by-step.

Yeah, 20mm should work fine. I bought some 3/4" but haven't used it. SupraSPL uses 1/2" as I recall.

Yes. Clean the heatsink with alcohol so the tape adheres well. What width, 15mm?

That looks OK. Humidity is spread quite evenly in a room. My humidifier has its own humidity sensor on the cord in back of the unit, works great.

My first order didn't have the PayPal merchant fee added to the invoice but now it is. People need to know.

I haven't grown under COBs but I have grown under Lumigrow which is basically dual spectrum. The 660nm red really seems to make things finish fast, like a week faster than the published flowering time. So I went with the warmer 3000K and even bought a couple 2700K CXA3590 to throw in the mix...

I'm building with 3000K for bloom but I see a lot of folks going for 3500K. I think the brightness bin is more important than CRI but 80 does seem like the best compromise.

To compare a CBX3590 with a CXA3050 (or whatever) we can use the Cree PCT (Product Characterization Tool). http://www.cree.com/LED-Components-and-Modules/Tools-and-Support/Tools I think they have to layer on more phosphors to get better CRI which lowers the lumens. Not what you need but I...

Not desirable for the plants, from what I've read around here.

I bought some W2 3000K from Newark when they were $8.50 but decided not to mess with them. Verical has these: CXA3050-0000-000N00W227F 60 available at $11.0632 Est. Ship Date: 11/10/2015 Fastest Delivery Date: 11/13/2015 Ships from: Netherlands Warranty: Manufacturer Date Code: 1321+ Minimum: 5...

kutop doesn't show the HLG-240H-C series yet. Mouser has a half dozen of each model arriving in the middle of January. Give Sager a call: http://www.powergatellc.com/mean-well-hlg-240h-c-power-supply.html The latest email from Jerry at Kingbrite says: " Many customers are waiting for MW...

I ruined a P2KC (I think) by using Ronson fuel. Use the best quality butane. Unless I was doing a lot of work in the field, I'd get a plug-in iron first--but either style will build a luminaire. I have one of the stand-up torches but I've never used it. A pen-type iron is more comfortable...

Thanks for the feedback about the KB lenses. Mine arrived in good shape but I've been debating whether I'll use them. Design Guide: "CX Family LEDs and Silicone All LED components should be designed into a lighting application that allows the LEDs to ventilate. Silicone is a gas‑permeable...

The first google result for "tasty LED" is Illumitex and then this LED sign at Amazon: But you're on your way, Rahz, congrats. Tastyled.com is only six slots from the top right now. And I agree with your business analysis. The pictured luminaire has a hobbyist look about it, no offense.

I think radial fins make good sense for passive as well, allowing upward air flow.

I was fantasizing about mounting an HBG Mean Well over an active Cooliance for a spot light. http://www.cooliance.com/NA/Products/LED-Coolers/Cree/LED-Coolers-For-Cree-CXA3590.php

Mouser charges $8 for shipping and I evade my state's sales tax.

Mouser shows almost $77 which does seem like a good price compared to the HLG-185 (almost $65).

These things are almost on the shelves in the US, it seems: http://www.powergatellc.com/mean-well-hlg-240h-c-power-supply.html (erroneous model numbers) http://www.mouser.com/Search/Refine.aspx?Keyword=hlg-240h-c

I've never been any good at repairing switching power supplies. Besides that, the HLG's are potted in epoxy as I recall.