Led Drivers and heatsink question for the cxa3070 build.

Okay I ordered most of the stuff. Supra or anyone that has done this high voltage stuff. I'm ruining the 10 vero 18 I think I might be at max with the meanwell driver or over by .5 is that ok? Also since I'm doing these in series what is your recommended awg and I'm assuming I need a higher voltage wire. Any recommendations and places to purchase from. Once again 10 vero 18 on meanwell hlg-185h-c700a which has max voltage of 286 and those ten verso would equal about 286.5 is that ok. Ty once again

Data sheet has the vero 18 max voltage @ 700Ma 25c as 31.2. That is the max Typical voltage is 28.4. I use the max when figuring for a driver. So 31.2 x 10 = 312 volts. The HLG -185H- C700A data sheet has Over volt protection kicking in @ 320-340 volts. looks like it will work just fine to me. I use the max voltage because when these chips are cold and first starting up you will see higher voltage till they warm up. Once warm you should have a voltage of around 284 if you can keep the chips @ 25c. The warmer you run them The lower the voltage will be.

So you think I should run a 600 v rated wire in series I'm also going to use the pico ezmate connection. You think that would be my best best?

Andrew1981 said:

So you think I should run a 600 v rated wire in series I'm also going to use the pico ezmate connection. You think that would be my best best?

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The pico ezmate suggested for the vero 18 is the ones pigtailed to 20 awg wire. The come in up to 18 inch lengths. So that can cover 36 inches when you add both chips pico connectors up. I wouldn't think you would need any extra wire unless you have the drivers far away. I would go with at least 20 awg if you need extra. 600 volt rating would work fine and is pretty common.

ty much for your help and you think all 4000k for all ten or mabye add in 4 3000k for more of a spectrum

Not sure what to tell you there. I still cant make up my mind on the spectrum for my light. The more i read the more i change my mind. But I would run Four 4000k and Six of the 3000k . I might change my mind ten more times before i get my veros ordered.

Hahaha same way here I have no idea but I'm doing 5 per bar and two bars so 10 vero but I'm doing bonsai and peppers n stuff so I might alternate like a 4000k and 3000 or so

Andrew1981 said:

Java where did you buy your tap from did you do a forming tap.cause some taps have a h6 h4 kind of thing on them. What Size drill but did you use also TyTy

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Ebay or amazon are decent places to buy taps from. They're cheaper to order from china, but takes a while to ship. They're a little more expensive if you buy from a vender in the states, but the shipping time is much lower. Just depends on what you want to do. Something like this would work great.

http://www.ebay.com/itm/M3-X-0-5-H6-D5-MET-FLO-THREAD-FORMING-BOTTOM-TAP-B-2-3-2-8-/111475763300?pt=LH_DefaultDomain_0&hash=item19f4792864

One thing to keep in mind is that thread forming taps need a larger hole than normal taps. This is because thread forming taps just 'compress' the material, rather than removing it in the form of chips. A M3 tap requires a 2.8mm drill bit/hole.

http://www.metricsunlimited.com/products/drillsize.html

Also to make life easy, I'd highly recommend one of these. Helps make tighter holes and virtually eliminates the possibility of breaking taps, assuming the hole itself is drilled straight.

http://www.grizzly.com/products/Tap-Wrench-w-Fixture/H5607

I'd say get 4 3000k chips, would probably help with flowering the pepper plant

you think the pico ezmate will handle all that voltage. i know its rated at 300V but as java said it might go over in the beginning.