DIY Samsung LM561C build

[jonsnow399]

No, the flexible strips are constant voltage and include resistors which makes your efficiency take a hit. By how much I dont know.

Edit: do the flexible strips come in CC? I thought they were all CV

No, I was just talking to Roget, they have CC strips.

 

[VegasWinner]

VegasWinner did you test with PAR meter?

i don't have a par meter but the plants seem to like it. that is how i do things.
namaste

 

[VegasWinner]

No, the flexible strips are constant voltage and include resistors which makes your efficiency take a hit. By how much I dont know.

Edit: do the flexible strips come in CC? I thought they were all CV

they come in both. i also ordered 10m of cc in 5000k and 3500k
namaste

 

[Randomblame]

So to clarify, the CC strips are equal to pcb mounted 561's?

I have not seen them yet, but provided they are real 561c, S6 they should give the same performance. For good cooling glue them on an aluminum sheet or better on C-channels...

 

[Randomblame]

I need some advice from fellow stripheads here. Putting together a strip assembly that I would like to control with a switch the turns half the strips on, or all of the strips on. I believe the electrical nomenclature for the functionality I'm looking for is Off/A/A+B. I can find lots of Off/A/B switches, but nothing that's A+B (except a bunch off audio switches). Can anybody point me in the right direction, or help me better define what I need so I can refine my search?

-b420

You need either 2 separate drivers or you need a dimmable driver to set the 2 stages via resistors in the dimmer circuit.
With a rotary switch like this one below and a few resistors, you could also set more than 2 levels, eg. 4 positions, 25k, 50k, 75k, 100k for 25%, 50%, .... (up to 11 levels with the one below)
But if you take the dimmable version you can also be dimmed steplessly over a 100k potentiometer.
Or you use an arduino with 0-10v extension card and control everything via pwm.
In any case, you need a dimmable driver.
With separate drivers, it's very easy to design, you just need a simple I-O-II switch for that.

 

[sethimus]

One 5m reel of 5000k samsung lm561c s6 bin

how many leds per meter?

 

[Moflow]

how many leds per meter?

2017 Top quality 24v samsung lm561c 12v 5630 smd rigid led strip samsung lighting original sasmung 561c



Power: 18watt/meter for 60LED ,30watt/meter for 120LED

 

[killziky]

could someone tell me if there is any way to use these strips and get 10 meters to run at 100W?

 

[VegasWinner]

I have not seen them yet, but provided they are real 561c, S6 they should give the same performance. For good cooling glue them on an aluminum sheet or better on C-channels...

They come with tape to apply. I used 1" flat stock works great no heat

 

[VegasWinner]

could someone tell me if there is any way to use these strips and get 10 meters to run at 100W?

On the constant voltage strip a meter gives 18w. Hope that helps

 

[VegasWinner]

I have not seen them yet, but provided they are real 561c, S6 they should give the same performance. For good cooling glue them on an aluminum sheet or better on C-channels...

My cv strip needs none but at twice as many on cc I am sure I will add a fan for cooling the al

 

[Mztoker]

100w samsung light total cost $40 20 misc al 20 strip

That only.cost you 20 bucks to make?

 

[VegasWinner]

That only.cost you 20 bucks to make?

The strip I had the power supply and the aluminium cost 20.

 

[Mztoker]

So how much are the strips

The strip I had the power supply and the aluminium cost 20.

 

[Baudelaire]

You need either 2 separate drivers or you need a dimmable driver to set the 2 stages via resistors in the dimmer circuit....
With separate drivers, it's very easy to design, you just need a simple I-O-II switch for that.

Thanks @Randomblame. So I realize I should have mentioned my setup has individual drivers for each strip. 3 strips each with their own driver (Estonia strips). So this would be an AC power switch that controlled power to 0: no strips, 1: strips A+C, 2: strips A+B+C. Strips A and C would be wired together in parallel. Strip B would be on its own circuit, until switch position 2 was selected. Is this where a "double pole, double throw" switch comes in? I currently have it wired with a I-0-II switch, but that only fires A+C or B alone.

-b420

 

[StonerCol]

the estonian strips are pretty good..

From where do you purchase these may I enquire?

 

[StonerCol]

thy search engine is thy friend

Which I tried but wasn't successful so I asked you. Happy now?

 

[Baudelaire]

Thanks @Randomblame. Is this where a "double pole, double throw" switch comes in?

I realize now I answered myself. Carry on...

@StonerCol: Ebay. http://ebay.to/2tqfFMP

Nice strips, good guys to work with. Wish they came with more documentation, but the strips are well made by TCI in Italy, and diodes very efficient, close to Samsung's top line and similar to the Bridgelux EB strips. They are discontinued by the manufacturer, so who knows how long they will have them in stock.

-b420

 

[nogod_]

Has anyone ever heard of/ordered from buy-components.com?

It appears that they have 700+ pieces of the new double-row 3000k fseries strips in the 56cm length. >>>LINK



They also have the single row version for $10 which is what I'm going to attempt to order this afternoon.

@Randomblame

 

[Randomblame]

Yepp, digikey has also 3.5k and 5k double row strips in stock(150) but not the single row ones. Seems they finally comes available.
But significantly more expensive..

https://www.digikey.com/products/en?keywords=SI-B8U521560WW