Awesome, hope we get some better CRI chips with this new constant current setup. The 2814 chips that I tested last month were 91.6 CRI, not bad for addressable RGBW!
Yeah the sk6812 have never been great in that regard. I've been getting good results with the ws2805, although their CCT values are a bit off. Video about them in the future!
Glad there is a focus on CRI. I'm always surprised when I see people who don't understand it. High CRI lighting has been a game changer at our house. @IntermitTech and @TheHookUp do either of you recommend a good spectrum analyzer that's not $1k+ ?
Thanks for the video! Great to know that they aren't great for primary light. I'll have to figure something else out for a 12V system, but might look at these for other projects.
You should still use power injection when posible, the voltage drop does cause power loses translated in more heat and more power usage. So its capable, but far from ideal
Please make a wled based custom usermod that can show temperature, date and time displayed on seven segment 4 digit ws2812b led display. And also have a customizable talking clock feature.
9:35 is it better to add a separate data channel better than using a data booster? Can a fresh data line just be run from the dog quad? Trying to find out which gives the best boost with the least amount of wire running and splicing, so things stay nice and neat. Thx
You need a fresh data channel from the Dig-Quad, a data-booster only helps if there is corruption and it's able to overcome it but in most situations the one built into the Dig-Quad will already do that (can't speak for other controllers though). But 10m is right on the edge of what usually works or not and then a Diff-Solo can help you bridge that gap more easily.
What is the connection diagram for a 12V WS2815 tape? I would like to connect my tape to the WLED interface. But I don't know where the 4th channel is connected, could you please help me?
2 months later, would you choose this still over WS2805? The power requirement is a lot per meter with this sk 6812cc but the 3 LED addressable is a real limitation of the WS2805. I think if the WS2805 was addressable per single LED, we finally have a true “best”, at least for another moment!
That will be the next strip shown (not sure on when the video will be out yet!). I like them, they have some of their own quirks but overall they are good and somehow even have great CRI, although I don't fully trust it and their CCT (white colors) are a bit off.
@@IntermitTech Awesome, im currently using sk6812 5v at my house, but my brother wants me to do a set for his kitchen, i just saw these and they have cct so i thought the white will be better and hopefully more suited to living spaces! Eagerly awaiting the video!
Those are very different style really. Splitting over 3 diodes is very efficient so no efficiency loss there. The 48v style use a buck-converter back to 12v internally and then spread it over 3 diodes, little less efficient in that sense but not by much and both will likely provide about the same amount of light.
Just these specifically in the video, at least at a higher voltage. Officially all of the chips are constant current but at 5v, there just isn't any headroom and they don't end up working that way.
I don't quite understand the explanation. Constant current means that the current always remains constant, right? You show a small table where the current changes depending on the input voltage. This is not constant current, is it? Constant current should be constant. It looks more like the system has become more efficient and does not waste voltage and current. And did you also measure how efficient this strip is compared to other strips?
I get this can sound confusing, and it is at first. Let me try and explain in more detail. Officially the Constant describes what the power supply is going to do. With CV so Constant Voltage the power supply has a single supply voltage like 12v but it's current so Amperage is variable. With CC so Constant Current the power supply has a single output current but it's voltage is variable, so a range. For a CV LED you for instance need 12v and it'll draw whatever current it needs, usually limited by a resistor or driver chip. Downside is, if that LED draws 20mA it will do so at 12v, at 5v or at 3v and look dimmer accordingly. For a CC LED you for instance need 200mA and it'll draw whatever voltage it needs (no need to limit with a resistor). For these the varying voltage matters a lot less, it'll just draw whatever it needs (within a range it can support). So these LEDs are a combination of it all I suspect. They have a CV supply so 12v but then their internal driver actually drives the diodes with the voltage they get and vary the current to whatever is needed to retain the same output levels. So with 12v or 8v coming in, by varying the current (or potentially voltage) they retain the same output level for the LED diodes. They are different from ws2815 in that sense since those basically have "blind diodes" or an internal LDO and thus will always use the same amount of power (actually structure is a bit more complicated but in the end the result is the same). It's a bit much to get into right here but hopefully that helps explain a bit more, most important for the video is really that they behave (or mimic the behavior) of CC LEDs and thus voltage drop doesn't inherently change their light output (until you go too far).
@@IntermitTech Wow that's a comprehensive explanation. Thank you! It still doesn't quite sound like constant current but a mix of it or something. Don't quite know how to put it into words. But so is this strip more energy efficient since no power is lost to fixed resistors or diodes?
Oh no, compared to 5v strip is very inefficiënt even! As you can see in the comparison shot all strips have about the same light levels but the 12v variants just use a whole more (down side of running more then 5v but still wanting single addressable). And while this strip is about equally efficient to ws2815, it also means it always less efficient then 5v.
The king of LEDs has spoken
I am always grateful for QuinLED's dedicated work.
Awesome, hope we get some better CRI chips with this new constant current setup. The 2814 chips that I tested last month were 91.6 CRI, not bad for addressable RGBW!
Yeah the sk6812 have never been great in that regard. I've been getting good results with the ws2805, although their CCT values are a bit off. Video about them in the future!
Glad there is a focus on CRI. I'm always surprised when I see people who don't understand it. High CRI lighting has been a game changer at our house. @IntermitTech and @TheHookUp do either of you recommend a good spectrum analyzer that's not $1k+ ?
I'm always amazed at the visual quality of your videos. Your videos are so clear and show no signs of compression on my oled.
Thnx! I have a whole custom workflow to try and squeeze out the best quality possible, got to see those LEDs as vibrant as possible! :D
Excellent video bro, im currently using 2815 for a project but this is a good piece of education for the future
Wow yay the future is changing !
Thanks for the video! Great to know that they aren't great for primary light. I'll have to figure something else out for a 12V system, but might look at these for other projects.
This is exactly what I was looking for a month ago! Good thing I didn’t buy yet.
Another great job. Thanks for all your hard work.
You should still use power injection when posible, the voltage drop does cause power loses translated in more heat and more power usage. So its capable, but far from ideal
Exciting. Wow. So this must be an entirely new kind of LED then, right? Each led can handle more voltage.
Awesome!
Finally!! Now they just need to come down in price lol and make a damn 24v variant...
We are waiting for a review of the WS2805 LED address strip
Very Nice. Thx. U da man.
Please make a wled based custom usermod that can show temperature, date and time displayed on seven segment 4 digit ws2812b led display. And also have a customizable talking clock feature.
9:35 is it better to add a separate data channel better than using a data booster? Can a fresh data line just be run from the dog quad? Trying to find out which gives the best boost with the least amount of wire running and splicing, so things stay nice and neat. Thx
You need a fresh data channel from the Dig-Quad, a data-booster only helps if there is corruption and it's able to overcome it but in most situations the one built into the Dig-Quad will already do that (can't speak for other controllers though). But 10m is right on the edge of what usually works or not and then a Diff-Solo can help you bridge that gap more easily.
What is the connection diagram for a 12V WS2815 tape? I would like to connect my tape to the WLED interface. But I don't know where the 4th channel is connected, could you please help me?
BI goes to GND, the rest is as is.
Do you know if they offer 6000k? Or can do on request?
2 months later, would you choose this still over WS2805? The power requirement is a lot per meter with this sk 6812cc but the 3 LED addressable is a real limitation of the WS2805. I think if the WS2805 was addressable per single LED, we finally have a true “best”, at least for another moment!
Hehehe yeah, they each have their up and downsides really couldn't really pick one, depends on the wishes.
Great video! What’s the brightest pixel available at the moment? You mentioned it was a 24v COB but is there a model / brand or a link to your video?
This one hands down for sure: ruclips.net/video/qmIcTIAlI74/видео.html
nice
What are your thoughts on the WS2805 thats now supported in WLED? It has a CCT White channel too.
That will be the next strip shown (not sure on when the video will be out yet!). I like them, they have some of their own quirks but overall they are good and somehow even have great CRI, although I don't fully trust it and their CCT (white colors) are a bit off.
@@IntermitTech Awesome, im currently using sk6812 5v at my house, but my brother wants me to do a set for his kitchen, i just saw these and they have cct so i thought the white will be better and hopefully more suited to living spaces! Eagerly awaiting the video!
1:24 so a 1😂2v rgbw pixel using 3 (split rgb &w) leds 5050, won't be a bright as the GS style 48v 6 led (3 separate rgb and 3 white) pixels?
Those are very different style really. Splitting over 3 diodes is very efficient so no efficiency loss there. The 48v style use a buck-converter back to 12v internally and then spread it over 3 diodes, little less efficient in that sense but not by much and both will likely provide about the same amount of light.
Are all SK6812 strips CC or just these ones?
Just these specifically in the video, at least at a higher voltage. Officially all of the chips are constant current but at 5v, there just isn't any headroom and they don't end up working that way.
I don't quite understand the explanation. Constant current means that the current always remains constant, right? You show a small table where the current changes depending on the input voltage. This is not constant current, is it? Constant current should be constant. It looks more like the system has become more efficient and does not waste voltage and current. And did you also measure how efficient this strip is compared to other strips?
I get this can sound confusing, and it is at first. Let me try and explain in more detail. Officially the Constant describes what the power supply is going to do. With CV so Constant Voltage the power supply has a single supply voltage like 12v but it's current so Amperage is variable. With CC so Constant Current the power supply has a single output current but it's voltage is variable, so a range.
For a CV LED you for instance need 12v and it'll draw whatever current it needs, usually limited by a resistor or driver chip. Downside is, if that LED draws 20mA it will do so at 12v, at 5v or at 3v and look dimmer accordingly.
For a CC LED you for instance need 200mA and it'll draw whatever voltage it needs (no need to limit with a resistor). For these the varying voltage matters a lot less, it'll just draw whatever it needs (within a range it can support).
So these LEDs are a combination of it all I suspect. They have a CV supply so 12v but then their internal driver actually drives the diodes with the voltage they get and vary the current to whatever is needed to retain the same output levels. So with 12v or 8v coming in, by varying the current (or potentially voltage) they retain the same output level for the LED diodes.
They are different from ws2815 in that sense since those basically have "blind diodes" or an internal LDO and thus will always use the same amount of power (actually structure is a bit more complicated but in the end the result is the same).
It's a bit much to get into right here but hopefully that helps explain a bit more, most important for the video is really that they behave (or mimic the behavior) of CC LEDs and thus voltage drop doesn't inherently change their light output (until you go too far).
@@IntermitTech Wow that's a comprehensive explanation. Thank you! It still doesn't quite sound like constant current but a mix of it or something. Don't quite know how to put it into words. But so is this strip more energy efficient since no power is lost to fixed resistors or diodes?
Oh no, compared to 5v strip is very inefficiënt even! As you can see in the comparison shot all strips have about the same light levels but the 12v variants just use a whole more (down side of running more then 5v but still wanting single addressable). And while this strip is about equally efficient to ws2815, it also means it always less efficient then 5v.