Opto/Illumination

US$18.32
This is a small chainable 1.75" (44.5mm) outer diameter board equipped with 5050 WS2812 RGB LEDs. The WS2812s are each addressable as the driver chip is located inside the LED. Each NeoPixel Stick has ~18mA constant current drive so the color will be very consistent even if the voltage varies, and requires 5V.
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US$52.42
There are 32 RGB LEDs per meter, and you can control each LED individually! Yes, that's right, this is the digitally-addressable type of LED strip. You can set the color of each LED's red, green and blue component with 7-bit PWM precision (so 21-bit color per pixel). The LEDs are controlled by shift-registers that are chained up down the strip so you can shorten or lengthen the strip.
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US$26.95

The product kit comes with: A fully tested and assembled LED backpack. Ultra-bright 4-digit 1.2" tall red seven-segment display. 5-pin header. A bit of soldering is required to attach the matrix onto the backpack but its very easy to do and only takes about 5 minutes. 

Delivery within 2-3 weeks
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US$27.92
Inside each segment is 3 red/green/blue LEDs, for 21 LEDs total. The anodes are all connected together and then there are 21 cathodes to control. 
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US$8.67
These little PCBs are only 8mm x 10mm and have two sets of three pads on the back for soldering wires.
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US$5.17
Each LED is encased in a 3.5mm thick strip of a acrylic.
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US$7.66
This is a pack of basic red, yellow, blue and green 5mm LEDs (5 of each) all conveniently packaged in a nice reusable ESD safe bag.
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US$8.19
Each pack includes 25 tiny green 1206 SMD LEDs in cut-tape packaging. These are great for status lights or for building really small LED matrices.
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US$8.78
Each pack includes 25 tiny white 1206 SMD LEDs in cut-tape packaging. These are great for status lights or for building really small LED matrices. 
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US$6.93
Eeach pack includes 25 tiny blue 1206 SMD LEDs in cut-tape packaging. These are great for status lights or for building really small LED matrices.
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US$4.97
Each pack includes 25 tiny red 1206 SMD LEDs in cut-tape packaging. These are great for status lights or for building really small LED matrices. 
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US$40.85
Designed specifically for wearables, these updated Flora NeoPixels have ultra-cool technology: these ultra-bright LEDs have a constant-current driver cooked right into the LED package! The pixels are chainable - so you only need 1 pin/wire to control as many LEDs as you like. They're easy to sew, and the chainable design means no crossed threads.
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US$69.92
This is the easiest way possible to add small, bright RGB pixels to your project. We took the same technology from our Flora NeoPixels and made them breadboard friendly, with two rows of 3 x 0.1" spaced header on each side for easy soldering, chaining and breadboarding. These ultra-bright LEDs have a constant-current driver cooked right into the LED package!
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US$20.93

Features: 3 1/2 LED digital panel meter. Single 9V DC-operation. High input impedance: > 100Mohm. Optional resistor set: PM/RES.

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US$22.65
This is a bare non-addressable 1 meter long RGB LED strips that come packed with 60 WS2801s per meter.
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