Battery Powered LED Strip

Battery Powered LED Strip Kits are ideal for applications where mobility is required or simply when there is no power outlet available. They are great for kiosks, special events, weddings, birthdays and even for Halloween or stage costumes.

Battery Powered LED Strip

USB LED strip

Add ambient lighting to your computing atmosphere with a USB LED strip. This add-on LED lighting promotes relaxation and calmness for your work or gaming area. In addition it serves as a low power solution back-light

USB LED strip

WS2812B/APA102 LED STRIP

WS2812B led strip is powered by a 5V power supply and is controlled by a single data line from a suitable controller, for example Teensy 3, Arduino, Raspberry Pi, BeagleBone Black or similar microcontroller/computer. APA102 is a type of three color-dimming IC,it has two signal cables:one data cable and one independent clock cable,which make the signal very fast and stable quality. and the strips can be 30/32/48/60/72/120 leds per meter,even as high density as 144led/m,the effect can be smooth transformation.

WS2812B/APA102 LED STRIP

275nm UVC LED

275nm UVC LED(UV275A-3535) is sealed in full aluminum packages with a choice of UV-transparent optical window. It can be Purification system,Disinfection,Analytical instruments,Sensor,and Medical Instruments.

275nm UVC LED

Difference between WS2801, WS2811 and WS2812 LED

2015/12/3 16:38:08

Difference between WS2801, WS2811 and WS2812 LED

Before we start, we should probably identify the differences between the WS2801, WS2811 and WS2812 based strips (also called “strands”).

Most projects and descriptions out there discus these sometimes mixed, and for one who dives into LED strips for the first time, these models numbers might be confusing.
The model numbers WS2801, WS2811 and WS2812 actually refer to different “things”.
The WS2801 and WS2811 are LED driver IC’s (Integrated Circuits).
These IC’s can control up to 3 LEDs, typically Red, Green and Blue. Positioned close together, so you as a viewer will see the mixed color result.
The WS2801 used to be quite popular but the WS2812/WS2811 appears to be taking over the reigns.
The WS2812 however is a WS2811 placed inside a 5050 LED package.
The 5050 LED is a very common 3 LED (Red, Green, Blue) package, in one 5mm x 5mm case.
A WS2812 is the same package but with an additional WS2811 LED driver IC on board.
In the illustration below you’ll see the difference:
On the left a 5050 RGB LED, on the right a WS2812 which combines a 5050 RGB LED with a WS2811 controller.
Note how the layout of the “silver” tracks are almost identical in both images, yet the black (IC) block and the tiny wires are different (right).

Where the WS2801 strips needed 4 wires, the WS2811/WS2812 strips only needs 3 wires. The WS2801 uses a separate clock line, which can be seen as an advantage, whereas the WS2811/WS2812 does not. The WS2811/WS2812 depends on sending data matching a very tight timing. The advantage of the WS2812 though, is that production of these combo’s in strips is easier and therefor cheaper, and each RGB LED takes much less space on strips.
Your selection here depends on what type of microcontroller you’ll be using and which of these are supported by the application or library you intend to use.
For example, Arduino based projects work fine with any of these, since everything runs real-time.
When using a Raspberry Pi however, using a WS2811/WS2812 can be a little bit more challenging due to the strict timing needs. A Raspberry Pi typically runs Linux, which is not a so-called Real-time Operating System, where intended timing might be disrupted by other background activities.

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