Diy light, how to ?

[CedricFr]

Hello,
I found this kind of panel and I'm not sure to understand how meanwell ldd works.

I was thinking to put 4 of this panel in series. In some wire I will have 44v of meds and in other 10v. To drive this led I was thinking to use meanwell ldd 700h.
I have two choice :
- Use 7 channels with 48v / 10A power supply
- Use 10 channels (divide the blue and white channels in two) with 24v / 10A
Is it right ? And what will be the power reference supply ?

And is it possible to have same voltage for each channel /driver or i need to change it before it enter in the driver (48v for a use of 12v) ? Can I burn more easily my led ?

I know it is a long and basic question. If somebody can help ? it can be with some good tutorial.

Thank in advance

 

[Reefing_addiction]

@fishguy242

 

[fishguy242]

Hi,sorry clueless.. @Brew12 @Paul B ?? I believe are master electricians. good luck..

 

[Reefing_addiction]

Hi,sorry clueless.. @Brew12 @Paul B ?? I believe are master electricians. good luck..

Knew you would know who to tag

 

[CedricFr]

@fishguy242 @Reefing_addiction Thank you guys !

 

[stefanm]

Run those at 500-600 ma, white, red and green 350ma would be ok also, you can wire the UV/violets together, that'll save a driver. What I would do is the two blue channels at 600ma, UV/violets at 500ma and the other 3 at 350ma that will require 2.75 amps, so a 4 amp or so 48v PSU would be fine.

What controller will you be using?

 

[TDEcoral]

Skim through the General DIY LED Thread. I'm sure it will answer many of your questions.

General DIY LED thread

so we have lots of derailing talk in other threads about DIY lights and what would be the optimal LED layout these days. would love to start a conversation about this. As for a project i'm working on. I'm planning a diy light for a frag tank in my fish room as something for some tinkering...

www.reef2reef.com

 

[Galvano]

Run those at 500-600 ma, white, red and green 350ma would be ok also, you can wire the UV/violets together, that'll save a driver. What I would do is the two blue channels at 600ma, UV/violets at 500ma and the other 3 at 350ma that will require 2.75 amps, so a 4 amp or so 48v PSU would be fine.

What controller will you be using?

IMO no need for a 48V PSU. As long as you don't intend to chain any of the 3-LED-channels a much cheeper [11V LED VF + 4V LDD I/O loss =] 15V PSU like a MW HRP-75-15 providing 5A should work as well, even with all 7 channels running at - not recommended - 700mA maximum current resulting in 4.9A.

 

[FBAA]

Make sure you use a heat sink because that board is going to get very hot. Understanding forward voltage will help. The LED's need this minimum voltage before they generate any light then the current must be limited by the meanwell drivers. When you wire it up put the LED's in series and not parallel on the driver. If you don't you will burn out a single led and cascade the rest to failure. The forward voltage needs to be calculated and must be under the voltage of the CC driver. In a series circuit you add all the forward voltages(Using worst case) by looking at your chart.

Here is a basic tutorial.

https://www.circuitcrush.com/how-leds-work-intro/