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ChknFngr

need led / electric help

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So i have a project to build a special desk led lamp, but not with standard bulb.

I need help from an electrician or some led wizard with what components i should get and im a complete noob with electric circuits and all that.

the leds bar/strip i want to use have these specs :

-14w
-40V
-350mA

and already got a driver, but i think it is too powerfull for these leds :

https://www.meanwell-web.com/en-gb/ac-dc-multi-stage-led-driver-constant-current-cc-lcm--40

my guess is that this one would be fine for like 3 of those leds, but too powerfull for just one, am i right ?
in this case i wil use it later for another fixture.
 

btw, i want to have a dimmer for this too, something like a simple knob.

 

Edited by ChknFngr

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That should be fine as it is rated for .35mA driver, but I am not sure what your LED strips are so something like this LED dimmer knob might work but you will have to do some more research on this as I am not very experienced with currents and resistance measuring. https://store.waveformlighting.com/products/filmgrade-flicker-free-dimmer-for-led-strip?variant=5771695915037&currency=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&gclid=CjwKCAjwz6_8BRBkEiwA3p02VQt7zPVlxUrQFmf38qq66y9eJZC5utOR_kpxhR5D1Vf5cDQso_ATRhoC80QQAvD_BwE

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yea, the driver is rated for 350mA but at 100v.

But as i understand it now, it should be fine as it is a constant current driver.

the link for the dimmer you got up there seems really nice and it seems like something i want, but it not cheap at all lol

anyway i think all i got will work fine.

thank you for the help Oster !

 

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Is it 100V?  Looks to me like it's 2-100V output.  And as far as how many strips it could drive, I think it's two - max output is 40W (42W but assume some driver losses) and three of them adds up to 42W.

I have built a few LED fixtures - all in series on big CC drivers.

 

 

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well, i can select a few output setting on the driver :

350mA 2 ~ 100V

600mA 2 ~ 80V

500mA 2 ~ 67V

700mA 2 ~ 57V

900mA 2 ~ 45V

1050mA 2 ~ 40V

 

So i will have to select 350mA, so it will give me 2 ~ 100V

what im wondering is how to make it so that it wont go above 40V, coz i only wants one led strip and it is 37.5V

i dont want 3 ledstrips as this will be like a desk lamp.

The input is 240V here.

 

Edited by ChknFngr

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