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As for use case, the WS2811 strips should be considered when cost is an important factor or when power injection can’t be easily accomplished, but being able to control each pixel individually is not necessary. This strip comes as a single full meter with a 3-pin JST SM connector on each end. Every LEDs segment can be cut. Solder to the 0.1" copper pads and you're good to go.you can also connect strips together to make them longer. To power this strip, you need a 12V power supply.
Unlike standard RGBW tape, each LED has its own chip (SK6812) which enables it to be controlled individually. 5V power injection will be required to avoid voltage drop and specialised external controllers and programming will be required.LED strip comes with a 15cm wire ending on each side of the strip roll. Therefore, no extra soldering is required if the roll should be cut into 2 different pieces (i.e. 3 meters + 2 meters).
Here you can learn anything about led strip lights, find the part you are intrested in to learn more knowledge. There are knowledge parts of led strip lights, power supply, controller, accessories, and how to connect led strip lights, etc.You can also watch our thousands of demo video. PixelStrip is ideal for use with Arduino, Raspberry Pi and Teensy as it's supported by most LED libraries including FastLED and Adafruit NeoPixel. The programmable LED strip light with 8-pin IC (VCC/GND/DIN/DO/OUTR/OUTG/OUTB/OUTW) accepts DIN data and can mix RGB to produce 16 million colors or produce a single R/G/B/W color, which can match Dream Color LED controller And Raspberrypi/Arduino UNO development board can realize precise single color control. High-quality IC with intelligent reverse connection protection. The IC contains intelligent digital interface, data latch signal shaping, amplifying drive circuit, power supply voltage regulator circuit, built-in constant current circuit, high-precision internal oscillator and high-voltage programmable constant current control part . The WS2812B also has slightly different chip timing, but not significant enough that WS2811 programs won’t also drive WS2812B strips.Unfortunately, like the SK9822 the WS2813 strips performed very poorly in terms of color accuracy exhibiting noticeable yellowing after about 45 pixels on full brightness. The power consumption of the strip was predictably less given the increased internal resistance requiring only 12.15 watts for the entire strip when lit at full brightness. I’d expect his number to go up significantly with more power injection points. You can also see that color accuracy is really consistent through the entire 5 meter strip, even without power injection, which as I mentioned before is the huge advantage of a 12V strip vs a 5V strip.
https://docs.google.com/spreadsheets/d/1-L0YvDVq_V17lLOeBc-H19np4wcSLqI6X5i6OAOGoaM/edit?usp=sharing IP67 Waterproof(Silicon sleeve waterproof, PCBis encapsulated with silicon tube, witha plasticfastener, better waterproof, For Outdoor); When questions are asked about the power consumption of these chips the standard answer is that each segment of the LED chip requires 20 milliamps, and therefore 3 full RGB led chips outputting full white should have a current draw of 180 milliamps, but I’m almost positive these estimations were made using 5V pixels, and are wildly inaccurate for 12V strips. A better way to compare 12V and 5V strips is to use wattage since Watts = Amps x Volts. In my tests the SK6812 had a moderately high power consumption at idle of .83 watts, and used 14.4 watts when fully lit with a significant amount of yellowing around LED number 90, but that’s not really a valid test since to produce white light you would only turn on the white channel, not all the channels. And while the white channel draws more than any other single channel, lighting the whole strip with white results in only 10 watts of power draw, the lowest white power consumption of any of the strips that I tested with the added benefit of near perfect color accuracy without power injection.The SK9822 chips had the highest idle power consumption of any of the 5V strips, but had comparable power consumption numbers for lighting the entire strip. One important thing to not was the significantly worse color accuracy due to voltage drop in these strips. When injecting power into WS2812B strips it is generally enough to power each end of a 5m strip, but in SK9822 strips I would suggest injecting power every 2 and a half meters to maintain color accuracy if you’ll be running them at full brightness. In my tests, the WS2811 had one of the highest power usages when no LEDS were lit, drawing 1.27 watts to power the microcontrollers, but full brightness white on 3 LED chips only increased the baseline draw by 46 milliamps or .552 watts and lighting the entire strip with pure white pulled a total of 1.64 amps, 19.68 watts or at full brightness, which is significantly less than the 9 amps or 108 watts you’d estimate using the 20 milliamp per channel calculation. In my tests the WS2812B consumed half as much power as the WS2811 when no LEDs were lit, but as expected, the power consumption for the LEDS was almost exactly the same at 60 milliwatts per channel, and the full strip consumed 13.6 watts, about 6 watts less than the WS2811. Being 5V strips, both types struggled to reproduce accurate colors near the end of the strip due to voltage drop, with the ECO version performing slightly worse than the non-eco version. I also have a new variety of the WS2812B chip called the “ECO”, which is supposed to have less power consumption, possibly for using with a battery. In my tests the ECO version did have the lowest baseline power consumption needing only 56 milliwatts with no LEDs lit, but with the LEDS lit the difference was less apparent having a difference of only 40 milliwatts with all the LEDs on full brightness white.
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