7 WS2812 5050 RGB LED Ring

product description is split, half is RGB you know and love, and the other half is a white LED with a yellow phosphor. Without highlights, it is like a yolk. Light up These are very bright (like my eyes hurt) and can control 8-bit PWM per channel (8 x 4 channels = 32-bit color overall). Perfect for adding a ton of color + white dots to your project. We have seven compact 5050 (5mm x 5mm) Smart RGBW LEDs mounted on a beautiful round PCB with mounting holes and a linkable design to create our most elegant (suitable for evening wear)  panels. Only use one microcontroller pin to control as many links as possible! Since the driver chip is located inside the LED, each LED can be addressed. Each has ~ 18mA constant current drive, so even if the voltage changes, the color will be very consistent, no external resistor, so that the design is more slim. The whole thing is powered by 5VDC (4-7V working) and youre ready for rock. The LED uses the 800 KHz protocol, so it takes a certain amount of time. the PWM frequency is ~ 400 Hz, which works well, but it is obvious if the LED is moving. In contrast, DotStars have a PWM rate of 20 KHz, so pixels are not seen even when moving LEDs, and mixing is very smooth. (If you can use them, we recommend DotStars) The LED is "chained" by connecting the output of one gem to the input of another gem. There is a data line with a very time-specific protocol. Because the protocol is very time-sensitive, it requires a real-time spinner such as AVR, Arduino, PIC, mbed and more. It can not be used on Linux product information Product size 3.9 × 2.6 × 0.2 inches Product weight 0.64 ounces