REXTiN® WS2811 Pixels Digital Addressable LED String Lights Waterproof RGB Full Color 12mm DC 12V (DC12V 50pcs)

Good product for a good price.... This is for the strand operated with 5 vd Setup: a 5vd/3 amp wallwort to power the strip , an UNO and both the Neopixel & fastled libraries in several sketches They functioned without any problems . Fastled - #define LED_TYPE WS2812B or as WS2811( both worked with this strip) #define COLOR_ORDER GRB - correct for this strip #define NUM_LEDS 50 Neopixel- They would not work when set to 400 KHz or RGB . // Parameter 1 = number of pixels in strip // Parameter 2 = pin number (most are valid) // Parameter 3 = pixel type flags, add together as needed: // NEO_KHZ800 800 KHz bitstream (most NeoPixel products w/WS2812 LEDs) // NEO_KHZ400 400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers) // NEO_GRB Pixels are wired for GRB bitstream (most NeoPixel products) // NEO_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2) Adafruit_NeoPixel strip = Adafruit_NeoPixel(50, PIN, NEO_GRB + NEO_KHZ800); - correct settings for this step Attached to the Ws8211 strip (50 pixel) is a WS2812B Strip (30 pixel)

Great Product, can be used with both Adafruit Neopixel library as well as Fast Led open source pixel library. Tip, Fast LED has a nice Calibrate sketch for Arduino which will help you determine the RGB order of these as well as other Pixel LED Strips. Spoiler: In my case the RGB order was as follows for my purchase RGB Order = BGR Along with NEO_KHZ800 if using Adafruit's library !!!!! ALSO VERY IMPORTANT STEP !!!!!! WHEN USING WITH AN EXTERNAL POWER SUPPLY AND ARDUINO DO NOT FORGET TO CONNECT THE GROUND OF THE PIXEL STRIP BACK TO THE ARDUINO'S GROUND PIN. IF YOU DO NOT DO THIS STEP THE COLORS WILL BE RANDOM AND YOU WILL BE LEFT FRUSTRATED FOR SOME TIME. I SCRATCH MY HEAD FOR HOURS AS MANY ONLINE NEOPIXEL TUTORIALS DID NOT MENTION THIS STEP. ALSO, ME BEING AN ELECTRONICS NOOBLET IT WAS NOT CLEAR AND SO I ONLY CONNECTED THE PIXEL DATA IN TO THE ARDUINO PIN AND CONNECTED THE POWER LINES TO AN EXTERNAL 12V POWER SUPPLY. THE ONLINE TUTORIALS LEAVE THIS STEP OUT PROBABLY BECAUSE THEY ARE TYPICALLY 5V TUTORIALS WHICH ARDUINO CAN HANDLE. SO NATURALLY ONE WOULD CONNECT THE PIXEL'S GROUND BACK TO THE ARDUINO'S GROUND PIN. HOWEVER, IF PURCHASING THE 12V STRIP YOU WILL NEED AN EXTERNAL POWER SUPPLY AND THUS THIS IS LEFT OUT OF MOST TUTORIALS I CAME ACCROSS. !!!!!!! I HOPE THIS HLEPS SOMEONE AS I STRUGGLED FOR SOME TIME FIGURING THIS OUT.

Very good leds, bright and colorfull. Love it.

Great quality for the price. Well made pixels. I’ve had another brand at a similar price that had lower quality on the casing and the pixels were often not pointing straight. Rextin brand are made as though there is care put into the making of them. I am very happy. I use them for my holiday (Halloween and Christmas) Light shows. So, in this case, a matrix display (signage) and the outlines to the windows at my house. Also, I drilled some holes in 2 x 4 to light up a cross I made to hang on my chimney. The lights in the matrix and window outlines have been actively working nightly for October and working great. The lights in the cross will be tested soon and will mostly be used for the Christmas light show. The included video is the lights operating during a programmed sequence. They are doing what they are supposed to do.

I tried a different brand and had nothing but issues. I have over 3k of these pixels and all work great. The only negative is that the connectors are not waterproof and will corrode if not kept dry. Still a great product and reliable.

Great lights. They are very bright and easy to install. I deducted one star only because extra male and female ends would make "jumper" wires easier to make. The video shows 670 lights.

Gateway drug into the world of programmable lighting. You can find WS2811 pixels from specialized vendors for cheaper, but these are the best on Amazon. Years later, and I'm still using mine! They eventually turned into a Christmas light show with nearly 10,000 pixels.

I bought 2,000 of these lights a year ago and installed them permanently on my home under the eves. I mostly followed a video guide I found online from a DrZzs on youtube. I recommend the 12V version of these instead of the 5v. These are very bright lights. In the 2,000 lights I received, I only had one pixel that stayed red no matter what color it is supposed to be. It is easy to splice in a new pixel, just make sure you maintain the proper direction. IMPORTANT INFORMATION ***** These only work in one direction!!! ***** what that means is if you cut and splice sections or pixels, make sure they are all fed from the same end of the strand (male vs. female). If you accidentally get one backwards it will not work. Big bummer after you spend 2 days putting them up on your house! I found that if I plugged in more than 7 strands (70') they started acting funny. The voltage dropped from 13.5V to 11.5V after 70'. Instead of injecting power every 70' or so by running feeders from the power supply, I just bought (3) power supplies and fed them from both ends and the middle. The 12V DC power supplies I bought on Amazon were $18 ... cheaper than the wire I could buy for feeders. I also used the Magic LED SP105E controller, which connects to your phone via Bluetooth and allows you to change the lights to one of 200+ shows. Absolutely highly recommend these lights as you can use them for all holidays, parties, or whenever!