potentiomenter

im4satori

Well-Known Member

• Apr 25, 2018

• #1

question #1 whats the best brand of 100K potentiometer and where can I get it?

question #2 which type of potentiometer (if one exists) will dim 3 drivers (240/54) using only 1 potentiometer?

thanks in advance

 

InTheValley

Well-Known Member

• Apr 25, 2018

• #2

well, i can tell you this much, i used the Bourns 50K for 2 meanwells, it was horrible. Im using 4 cobs, 2 different Ks, and now use 100K from zon for each K, and they are awesome,

URBEST 20pc for $10, 100K Linear

 

im4satori

Well-Known Member

• Apr 25, 2018

• #3

InTheValley said:

well, i can tell you this much, i used the Bourns 50K for 2 meanwells, it was horrible. Im using 4 cobs, 2 different Ks, and now use 100K from zon for each K, and they are awesome,

URBEST 20pc for $10, 100K Linear

Click to expand...

https://www.amazon.com/URBEST-adjus...1524705331&sr=8-4&keywords=potentiometer+100k


this one?

20 pc ? how many dimmers are in there?

 

Aolelon

Well-Known Member

• Apr 25, 2018

• #4

You can use 1 potentiameter ro dim as many drivers and you want, it just has to be rated high enough.

 

InTheValley

Well-Known Member

• Apr 25, 2018

• #5

im4satori said:

https://www.amazon.com/URBEST-adjus...1524705331&sr=8-4&keywords=potentiometer+100k


this one?

20 pc ? how many dimmers are in there?

Click to expand...

Yes, thats it, you get 20 dimmers, and 20 knobs, and they are smooth and flawless, at least the 2 i picked outta the bag, lol..

I did go with the Bourns, like suggested, and it didnt fluidly make the adjustment.

 

jarvild

Well-Known Member

• Apr 25, 2018

• #6

https://www.ledsupply.com/blog/understanding-led-drivers/

 

Aolelon

Well-Known Member

• Apr 25, 2018

• #7

If you don't want 20 of them.. here is a link for just one and has worked for me
https://www.amazon.com/gp/product/B0002KRE2U/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

 

im4satori

Well-Known Member

• Apr 25, 2018

• #8

 

im4satori

Well-Known Member

• Apr 25, 2018

• #9

here is the driver

if im not mistaken its an AC driver ...it says ACL and ACN for live and neutral

I want to connect 3 of these drivers (likely using wago connectors) to one dimmer/potentiometer

anybody want to help me make sure I get the correct part?

im not sure how to determine the proper sized potentiometer to run all three drivers

 

Aolelon

Well-Known Member

• Apr 25, 2018

• #10

One 100k potentiameter should dim 3 of those just fine

 

im4satori

Well-Known Member

• Apr 25, 2018

• #11

if I can use a std lutron dimmer from the hardware store im fine with that but I just don't want to use something that's going to harm the drivers

these drivers do have the built in dimmer leads....

 

im4satori

Well-Known Member

• Apr 25, 2018

• #12

Aolelon said:

One 100k potentiameter should dim 3 of those just fine

Click to expand...

so I don't need anything rated special?

I can just use the std 100K URBEST dimmers ?

 

Aolelon

Well-Known Member

• Apr 25, 2018

• #13

Yes, you could also add a 10k resistor to each negative terminal but you should be okay

 

Aolelon

Well-Known Member

• Apr 25, 2018

• #14

I would just try the 100k potentiameter by itself at first

 

nfhiggs

Well-Known Member

• Apr 25, 2018

• #15

im4satori said:

if I can use a std lutron dimmer from the hardware store im fine with that.

Click to expand...

Those are not what you want at all. You want ordinary 100K linear potentiometers.

 

Aolelon

Well-Known Member

• Apr 25, 2018

• #16

Read the link posted above for help. There is a formula for figuring out what you need where k/n k ks the resistance and n is the number of drivers

 

Aolelon

Well-Known Member

• Apr 25, 2018

• #17

Here is this

 

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  3in1dimfun1.jpg

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Aolelon

Well-Known Member

• Apr 25, 2018

• #18

Sorry I'm actually second guessing myself here.. from the picture it looks like you would need 100k/3=33k so maybe a 50k potentiameter. I could be wrong though

 

im4satori

Well-Known Member

• Apr 25, 2018

• #19

Aolelon said:

Sorry I'm actually second guessing myself here.. from the picture it looks like you would need 100k/3=33k so maybe a 50k potentiameter. I could be wrong though

Click to expand...

yes that's what info im getting from other sources

im told 100K is for one driver, 50K for 2, 33K for 3

 

Aolelon

Well-Known Member

• Apr 25, 2018

• #20

Yep that's what I read too. Sorry for the wrong info at first. This shot is pretty confusing. I'm just getting a grasp on all of it