4x4 cxb3590 first time grower

Airwalker16

Well-Known Member
Update:
So, due to lack of product and my lack of patience i have ordered 16cxb3590s. 4 of the 16 are 3500k, the other 12 will be 3000k. Hopefully it will all be here next week.
Man... with 16 cobs, I personally would have mixed that spectrum a ton.
Like 8-3500, 4-4000, 2-5000,2-3000
 

grouch

Well-Known Member
I'd just want more of a full spectrum. You're set up will kill it just fine for sure though.
What do you consider a full spectrum? I'm just trying to understand your recommendation. Was it just throwing a bunch of color spectrums together or based on something else?
UPDATE

These are CXB3590
Got the numbers from http://www.cutter.com.au/proddetail.php?prod=cut2809 and threw them into a spreadsheet for a visual comparison
Unfortunately all they had numbers for were 3000, 3500, 4000 and 5700k

I dropped 700+ IR because it's more of a trigger than growth contributor

Added 5700k

Keep in mind they measured from less than 8 inches

View attachment 3610424
View attachment 3610432

View attachment 3610425
View attachment 3610433
click on the attachments or click on the post to see the bar graphs.
 

Airwalker16

Well-Known Member
What do you consider a full spectrum? I'm just trying to understand your recommendation. Was it just throwing a bunch of color spectrums together or based on something else?
click on the attachments or click on the post to see the bar graphs.
I mean so you could use it for veg, dimmed, and have some of the higher kelvin temps added. Although, all 3000,3500, & 4000k chip lamps work great for both anyways.
 

DackEW

Member
Hello Guys,

I'm new to building LED lights and unsure what kind of potentiometer should I use for 2x HLG 185h c1050B driver? I'd like something nice and easy to install, could you please reccommend something?
 

grouch

Well-Known Member
Hello Guys,

I'm new to building LED lights and unsure what kind of potentiometer should I use for 2x HLG 185h c1050B driver? I'd like something nice and easy to install, could you please reccommend something?
I got mine at radioshack, not sure if they're still around
 

Airwalker16

Well-Known Member
You'll need a 50k ohm potentiometer. You're best bet is eBay or Amazon. Most don't come with knobs so make sure you get that too if they dont. Then just wire up a 5k ohm RESISTOR to the BLUE wire an inch or more away from the potentiometer lead you'll solder to. It does not matter which color goes to which post. BESIDES using the left and center ones if the knob were facing down and the leads were UP at the TOP. Like this. The pic has 2 5k resistors because this is only 1 driver on a single wall plug though.1456563481207-428189803.jpg
 

Airwalker16

Well-Known Member
Why the resistor? Because of the tolerance of potentiometer? what resistor do i need with a 10% tolerance resistor?
I was cautioned by @Rahz to do so. It's because where it can go to zero if not, can damage the cob I guess. Unless you're wired on like ldd1000's Meanwell for each cob on an arduino, you don't wanna dim to zero.
 

BioManFreak

New Member
thx
i meant 10% tolerance pot. I have a pot without knowing the tolerance. i gues it has 10%. so 10k ohm resistor is right choice?
 

Airwalker16

Well-Known Member
1456564987905-1208005752.jpg This is what yours should look like exactly if you use a 5k resistor. If radio shack doesn't have them, you could use 5-1ks or 2-2.5ks. Just make it add to close to 5. Mine are ACTUALLY 5.6.
 

DackEW

Member
You'll need a 50k ohm potentiometer. You're best bet is eBay or Amazon. Most don't come with knobs so make sure you get that too if they dont. Then just wire up a 5k ohm RESISTOR to the BLUE wire an inch or more away from the potentiometer lead you'll solder to. It does not matter which color goes to which post. BESIDES using the left and center ones if the knob were facing down and the leads were UP at the TOP. Like this. The pic has 2 5k resistors because this is only 1 driver on a single wall plug though.View attachment 3618009
Thanks I will use the 5K resistor and an 50k ohm potentiometer as you suggest. But still unsure if I can connect two driver into that one potentiometer?
 

Airwalker16

Well-Known Member
Thanks I will use the 5K resistor and an 50k ohm potentiometer as you suggest. But still unsure if I can connect two driver into that one potentiometer?
Yes. Thats what the second pic is of and you can see there are TWO white & blue wires. You can definitely put 2 drivers of the same model together. That's when you use a 50k pot and 5k resistor. If it's just a solo single driver, by itself, it's a 100k potentiometer and a 10k resistor.
 

Airwalker16

Well-Known Member
But you can connect the 2 dimming lead wires together at any spot along the wire you're gonna use to solder to the potentiometer.
 
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