As for their power draw specifications, there are hundreds of forum posts linking to the LED datasheets and giving generalized rules for calculating current draw, but I couldn’t find much in the way of testing and comparison. So for this video I tested each type of LED strip by first measuring the current draw of strip with all the LEDs off, then the current draw of a single channel of one pixel, all channels of one pixel, a single channel on all pixels, and the overall current draw for the entire strip with every channel at maximum brightness. I also evaluated the loss of color accuracy due to voltage drop for each strip type.

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. 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).

The cutting unit is closely related to the control of several LED lights by one IC.One IC controls one LED, so a single LED can be cut. This LED strip has a low drive voltage which allows for environmental protection and energy saving, high brightness, good consistency, low power and long life.

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. 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. The WS2812B also has slightly different chip timing, but not significant enough that WS2811 programs won’t also drive WS2812B strips. 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 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.

Voltage drop is the term used to describe the difference in voltage at the beginning of a wire run and the end of that run. Voltage drop is a result of the actual wire, or in our case the copper traces on the LED strip contributing a significant amount of electrical resistance. If you output 5 volts and have 2.5 volts of drop after 30 feet that means we’ve had a 50% voltage drop and our strip is only going to be receiving 2.5 volts total, which isn’t enough to accurately drive these LEDs and produce the correct colors. If you instead start with 12 volts and have that same 2.5 volt drop, it only represents a 21% drop in voltage and the remaining 9 and a half volts will produce significantly more accurate colors than the 5 volt strip. 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 . 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.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.