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I have a quick question as a follow-up to this response. I have decided to install a power switch and fuse on the AC side of my grow light. I am going to install this plug w/ fuse. The plug is rated for up to a 15 amp fuse/ 250V. My driver is a HLG-240-1750B and my cooling is four Arctic Alpine...

Thanks again for the help. Apologies to any of our Jewish friends on here, didn't mean to offend... just a little bit of my native "northeastener" slipping out. Shalom!

Ahhh, now I get it... so the power capacity doesn't even really matter in this case, only resistance matters, because it is essentially controlling a signal to the driver. Well, here is the pot I want to use... mainly because it looks good. And... here is the resistor I chose. Does this look...

Thanks for the response. But, do the power ratings have to match? It seems like there are more pot options with 1/2 watt and 1 watt power ratings. So, if I went with a 1/2 watt pot then would I have to go with a 1/2 watt resistor too? Or can I stick with the 1/4 watt resistor?

To follow up on my last question about potentiometers and resistors... let me ask this question, which I think is more succinct. I think this was alluded to earlier, but wasn't explicitly answered. Does the power rating of a potentiometer have to match the power rating of a resistor? For...

Got a quick question. I need to buy a potentiometer. I am using a Meanwell HLG240 - 1750B to run four Cree CXB3590. Will this pot work? I am planning on using it with a 10k resistor. http://www.mouser.com/ProductDetail/Vishay-Sfernice/P16NP104KAB15/?qs=sGAEpiMZZMtC25l1F4XBU6ciXKENQBPmyf86Tj0LpT8%3d

Okay, I tried to read through this thread and figure out the pot situation for my DIY COB light. But, my eyes started to glaze over and I'm still somewhat confused. I was over on Mouser clicking through the filters for pots, but this still had me confused. I want to make sure I'm buying the...

Thanks for the help!

Thanks for the link!

Hey Growmau5, I've been keeping up with your COB build videos and of course you're getting a lot of props over on The Dude Grows. Anyway, I'm working on my own COB grow light and have a quick question. Should one wire an inline fuse between the LED driver and LEDs? I saw someone mention this in...

Thanks. Yup, Portland in the house! Stumptowwwwn!

How is the reliability of this Alibaba seller? I've noticed a lot of DIYers one here buying from Kingbrite. Just want to make sure it is legit before committing.

Congrats on your LED success, fellow Oregonian. I've come to the same conclusion with DIY Cobs. I'm going to build one using the CXA 3070 as well due to cost effectiveness. Actually, I will be growing in a cabinet the same size as yours. But, I'm thinking 4 or 5 COBs at 50 watts each. Not sure...

Are you driving those at 700 mA to get such high efficiency? What type of lenses did you use?