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Bicolor Led

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In a bicolor LED, is the middle lead the ground?

There are two types of devices that are commonly called "bicolor LEDs."

A true bicolor LED is of the bipolar type, and has only two leads. If current is applied in one polarity, the LED emits one color of light, and if the opposite polarity is applied, the LED emits the other color.

There are also common-anode and common-cathode LEDs in which two separate LEDs are housed in one case, with either the cathodes or the anodes being tied together inside the case.

In the case of these common-lead LEDs, the center lead is the common lead, either anode or cathode. The side leads are the opposite poles of the two LEDs.


Check Ebay for Bicolor Led products. Ebay can be a great resource for finding most anything you desire!

10pcs 8x8 Dot Matrix 3mm dia Bicolor LED Display
10pcs 8x8 Dot Matrix 3mm dia Bicolor LED Display
$12.95
Time Remaining: 16d 6h 41m
Buy It Now for only: $12.95

30pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
30pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
$0.90 (1 Bid)
Time Remaining: 1h 11m

New 1pcs 8x8 Dot Matrix 3mm dia Bicolor LED Display
New 1pcs 8x8 Dot Matrix 3mm dia Bicolor LED Display
$1.99
Time Remaining: 15d 8h 41m
Buy It Now for only: $1.99

30pc 3mm Bi Color Bi pin Yellow Blue Led for 3v 6v 9v 12v car boat marine YB3L
30pc 3mm Bi Color Bi pin Yellow Blue Led for 3v 6v 9v 12v car boat marine YB3L
$0.90 (1 Bid)
Time Remaining: 21h 6m

10pcs 5mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG5L
10pcs 5mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG5L
$1.38
Time Remaining: 17d 3h 4m
Buy It Now for only: $1.38

10pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
10pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
$1.98
Time Remaining: 19d 6m
Buy It Now for only: $1.98

30pc 3mm Bi Color Bi pin Yellow Blue Led for 3v 6v 9v 12v car boat marine YB3L
30pc 3mm Bi Color Bi pin Yellow Blue Led for 3v 6v 9v 12v car boat marine YB3L
$0.90
Time Remaining: 1d 14h 8m
Buy It Now for only: $1.58

20Pcs 5mm Bi Color Red Blue 3 Pin LED Common Cathode
20Pcs 5mm Bi Color Red Blue 3 Pin LED Common Cathode
$4.99
Time Remaining: 27d 5h 40m
Buy It Now for only: $4.99

20x 3mm Dual Bi Color Red Blue 3Pin LED Common Cathode
20x 3mm Dual Bi Color Red Blue 3Pin LED Common Cathode
$4.99
Time Remaining: 28d 7h 16m
Buy It Now for only: $4.99

10 pcs 8x8 Dot Matrix 3mm Red  Green dia Bicolor LED Display New
10 pcs 8x8 Dot Matrix 3mm Red Green dia Bicolor LED Display New
$12.90
Time Remaining: 21h 24m

10pcs 5mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG5L
10pcs 5mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG5L
$1.38
Time Remaining: 29d 6h 25m
Buy It Now for only: $1.38

30pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
30pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
$0.90
Time Remaining: 18h 15m
Buy It Now for only: $1.68

100Pcs 3mm Dual Bi Color Red Blue 3Pin Water Clear LED Common Cathode
100Pcs 3mm Dual Bi Color Red Blue 3Pin Water Clear LED Common Cathode
$12.99
Time Remaining: 24d 2h 49m
Buy It Now for only: $12.99

100 pcs LED BiColor Red Green Round 5mm Common Cathode
100 pcs LED BiColor Red Green Round 5mm Common Cathode
$7.99
Time Remaining: 26d 7h 37m
Buy It Now for only: $7.99

30pc 3mm Bi Color Bi pin Yellow Blue Led for 3v 6v 9v 12v car boat marine YB3L
30pc 3mm Bi Color Bi pin Yellow Blue Led for 3v 6v 9v 12v car boat marine YB3L
$0.90
Time Remaining: 1d 18h 20m
Buy It Now for only: $1.58

1003mm Dual Bi Color Red Green Bright 3 Pin LedRG3L
1003mm Dual Bi Color Red Green Bright 3 Pin LedRG3L
$8.99
Time Remaining: 23d 26m
Buy It Now for only: $8.99

100x3mm Dual Bi Color Red Green 3Pin LED Common Cathode
100x3mm Dual Bi Color Red Green 3Pin LED Common Cathode
$13.99
Time Remaining: 14d 20h 12m
Buy It Now for only: $13.99

30pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
30pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
$0.90
Time Remaining: 1d 18h 21m
Buy It Now for only: $1.68

50PCS 3MM Dual Bi Color Red Bllue Bright 3 Pin Led
50PCS 3MM Dual Bi Color Red Bllue Bright 3 Pin Led
$4.99
Time Remaining: 12d 20h 36m
Buy It Now for only: $4.99

10pcs 3mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG3L
10pcs 3mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG3L
$1.38
Time Remaining: 17d 3h 14m
Buy It Now for only: $1.38

20pcs 5mm Dual Bi Color Red Green Bright 3 Pin Led for 3v 9v 12v Car BoatRG5L
20pcs 5mm Dual Bi Color Red Green Bright 3 Pin Led for 3v 9v 12v Car BoatRG5L
$0.90
Time Remaining: 3d 18h 1m
Buy It Now for only: $1.48

100Pcs 5mm Dual Bi Color Red Blue 3 Pin Water Clear LED Common Cathode
100Pcs 5mm Dual Bi Color Red Blue 3 Pin Water Clear LED Common Cathode
$12.99
Time Remaining: 27d 5h 42m
Buy It Now for only: $12.99

15 Bi Color LED Red Green SML12RG4T TR
15 Bi Color LED Red Green SML12RG4T TR
$0.01
Time Remaining: 4d 12h 31m

1005mm Dual Bi Color Red Green Bright 3 Pin LedRG5L
1005mm Dual Bi Color Red Green Bright 3 Pin LedRG5L
$8.99
Time Remaining: 4d 5h 9m
Buy It Now for only: $8.99

10 SEGMENT LED BARGRAPH Bi Color Green Red Brand New
10 SEGMENT LED BARGRAPH Bi Color Green Red Brand New
$2.35
Time Remaining: 7d 13h 21m
Buy It Now for only: $2.35

50pcs 5mm Dual Bi Color Red Green Bright 3 Pin LedRG5L m
50pcs 5mm Dual Bi Color Red Green Bright 3 Pin LedRG5L m
$0.90
Time Remaining: 3d 17h 9m
Buy It Now for only: $1.95

100Pcs 5mm Dual Bi Color Red Pure Green 3 Pin Water Clear LED Common Anode
100Pcs 5mm Dual Bi Color Red Pure Green 3 Pin Water Clear LED Common Anode
$12.99
Time Remaining: 27d 5h 41m
Buy It Now for only: $12.99

30pc 5mm Dual Bi Color Red Green Bright 3 Pin LedRG5L mh
30pc 5mm Dual Bi Color Red Green Bright 3 Pin LedRG5L mh
$3.68
Time Remaining: 3d 23h 53m
Buy It Now for only: $3.68

50pcs 3mm Dual Bi Color Red Green Bright 3 Pin LedRG3L m
50pcs 3mm Dual Bi Color Red Green Bright 3 Pin LedRG3L m
$0.90
Time Remaining: 3d 18h 55m
Buy It Now for only: $1.95

LED Bi Color  Blue  Red 3mm WC 3 pin 2 pcs
LED Bi Color Blue Red 3mm WC 3 pin 2 pcs
$1.99
Time Remaining: 25d 13h 47m
Buy It Now for only: $1.99

100Pcs 5mm Dual Bi Color Red Green 3 Pin Water Clear LED Common Cathode
100Pcs 5mm Dual Bi Color Red Green 3 Pin Water Clear LED Common Cathode
$8.99
Time Remaining: 27d 5h 41m
Buy It Now for only: $8.99

100PCS 3MM Dual Bi Color Red Bllue Bright 3 Pin Led
100PCS 3MM Dual Bi Color Red Bllue Bright 3 Pin Led
$0.99
Time Remaining: 5d 20h 31m
Buy It Now for only: $3.98

10pcs 3mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG3L
10pcs 3mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG3L
$1.38
Time Remaining: 22d 20h 58m
Buy It Now for only: $1.38

50pcs 3mm Dual Bi Color Red Green Bright 3 Pin LedRG3L m
50pcs 3mm Dual Bi Color Red Green Bright 3 Pin LedRG3L m
$0.90
Time Remaining: 2d 21h 47m
Buy It Now for only: $1.95

1003mm Dual Bi Color Flashing Red Green Bright LedRG
1003mm Dual Bi Color Flashing Red Green Bright LedRG
$9.99
Time Remaining: 4d 4h 57m
Buy It Now for only: $9.99

100x3mm Dual Bi Color Red Blue 3Pin LED Common Anode
100x3mm Dual Bi Color Red Blue 3Pin LED Common Anode
$12.00
Time Remaining: 18d 10h 49m
Buy It Now for only: $12.00

20pcs 5mm Dual Bi Color Red Green Bright 3 Pin Led for 3v 9v 12v Car BoatRG5L
20pcs 5mm Dual Bi Color Red Green Bright 3 Pin Led for 3v 9v 12v Car BoatRG5L
$0.90
Time Remaining: 3d 21h 15m
Buy It Now for only: $1.48

1003mm Dual Bi Color Flashing Red Green Bright LedRG
1003mm Dual Bi Color Flashing Red Green Bright LedRG
$9.99
Time Remaining: 17d 5h 7m
Buy It Now for only: $9.99

30 pcs LEDs Mixed BiColor Green Red Yellow Round 5mm NEW
30 pcs LEDs Mixed BiColor Green Red Yellow Round 5mm NEW
$5.99
Time Remaining: 29d 9h 14m
Buy It Now for only: $5.99

50pcs 5mm Dual Bi Color Red Green Bright 3 Pin LedRG5L m
50pcs 5mm Dual Bi Color Red Green Bright 3 Pin LedRG5L m
$0.90
Time Remaining: 5d 19h 52m
Buy It Now for only: $1.95

20pc 5mm Dual Bi Color Red Green Bright 3 Pin LedRG5L
20pc 5mm Dual Bi Color Red Green Bright 3 Pin LedRG5L
$1.98
Time Remaining: 29d 6h 52m
Buy It Now for only: $1.98

15pcs 3mm Dual Bi Color Red Green Bright 3 Pin LedRG3L m
15pcs 3mm Dual Bi Color Red Green Bright 3 Pin LedRG3L m
$0.90
Time Remaining: 5d 2h 20m

2003mm Dual Bi Color Red Green Bright 3 Pin LedRG3L
2003mm Dual Bi Color Red Green Bright 3 Pin LedRG3L
$19.99
Time Remaining: 4d 4h 53m
Buy It Now for only: $19.99

10pcs 3mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG3L
10pcs 3mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG3L
$1.38
Time Remaining: 29d 6h 22m
Buy It Now for only: $1.38

15pcs 5mm Dual Color Bi Color Red Green Super Bright 3 Pin RG5L m
15pcs 5mm Dual Color Bi Color Red Green Super Bright 3 Pin RG5L m
$0.90
Time Remaining: 5d 1h 43m

205MM Dual Bi Color Blue green Bright 3 Pin Led3BG5
205MM Dual Bi Color Blue green Bright 3 Pin Led3BG5
$7.95
Time Remaining: 26d 7h 55m
Buy It Now for only: $7.95

2005mm Dual Bi Color Red Green Bright 3 Pin LedRG5L
2005mm Dual Bi Color Red Green Bright 3 Pin LedRG5L
$19.99
Time Remaining: 4d 5h 18m
Buy It Now for only: $19.99

30pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
30pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
$0.90
Time Remaining: 6d 23h 7m
Buy It Now for only: $1.68

500pcs 5mm Clear Bi color Red Blue fast flashing LED
500pcs 5mm Clear Bi color Red Blue fast flashing LED
$20.99
Time Remaining: 19d 20h 58m
Buy It Now for only: $20.99

8 x 8 Dot Matrix LED Light Display 3mm Bicolor Green and Red for Arduiino AVR
8 x 8 Dot Matrix LED Light Display 3mm Bicolor Green and Red for Arduiino AVR
$2.99
Time Remaining: 18d 22h 57m
Buy It Now for only: $2.99

30pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
30pc 3mm Dual Bi Color Red Green Bright 3 Pin Led 4 CAR BOAT 3V 6V 9V 12VRG3L
$0.90
Time Remaining: 4d 21h 14m
Buy It Now for only: $1.68

100Pcs 5mm Dual Bi Color Red Pure Green 3 Pin Water Clear LED Common Cathode
100Pcs 5mm Dual Bi Color Red Pure Green 3 Pin Water Clear LED Common Cathode
$12.99
Time Remaining: 27d 5h 40m
Buy It Now for only: $12.99

8 pcs 24 INCH 5X8 DOT MATRIX BI COLOR DISPLAY
8 pcs 24 INCH 5X8 DOT MATRIX BI COLOR DISPLAY
$13.99
Time Remaining: 4d 14h 52m

10pcs 8x8 Dot Matrix 3mm dia Bicolor LED Display RG
10pcs 8x8 Dot Matrix 3mm dia Bicolor LED Display RG
$14.99
Time Remaining: 16d 15h 56m
Buy It Now for only: $14.99

100 pcs LED BiColor Red Yellow Round 5mm Common Cathode
100 pcs LED BiColor Red Yellow Round 5mm Common Cathode
$6.99
Time Remaining: 9d 9h 16m
Buy It Now for only: $6.99

15p 5mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG5L m
15p 5mm Dual Color Bi Color Red Green Super Bright 3 Pin Water Clear LedRG5L m
$0.90
Time Remaining: 5d 1h 51m
Buy It Now for only: $1.84

2 pcs LED 3mm Bright Dual Bi Color Red Green RG Light Common Anode Good New
2 pcs LED 3mm Bright Dual Bi Color Red Green RG Light Common Anode Good New
$1.49
Time Remaining: 27d 1h 24m
Buy It Now for only: $1.49

10pcs5mm Flash Flashing Bi color Red Green Defused Led LightRGF n
10pcs5mm Flash Flashing Bi color Red Green Defused Led LightRGF n
$1.46
Time Remaining: 18d 22h 17m
Buy It Now for only: $1.46

P762 32X16 RG Bicolor LED Dot Matrix Unit Board
P762 32X16 RG Bicolor LED Dot Matrix Unit Board
$37.99
Time Remaining: 3d 21m

500 pcs LEDs Bi Color REd Yellow 5mm
500 pcs LEDs Bi Color REd Yellow 5mm
$16.99
Time Remaining: 28d 10h 13m
Buy It Now for only: $16.99


Another great resource for Bicolor Led products is Amazon. They have far more than just books!


aqua signal bi-color led deck mount light asl


aqua signal bi-color led deck mount light asl



83OT16X661LGIUQO05X0...


Dedo Felloni High Output BiColor 50 Degree 576 LEDS 1x1 Panel


Dedo Felloni High Output BiColor 50 Degree 576 LEDS 1x1 Panel



Dedolight Felloni High Output BiColor 50 Degree 576 LEDS 1x1 Panel The Dedolight LED Light Panel is simply the best deal for a professional LED light kit. High output, great color rendering and affordable price makes this LED hard to beat. A 1'x1' LED Light Panel that is rain proof and provides dimming from 100-0%. 30% Brighter while drawing only 24W and runs on either AC or DC (battery). Built in...


perko stealth led bi-color pole light collar


perko stealth led bi-color pole light collar



GBU4XJKFK834K0GJOHWE...


System Sensor 4WB 4-Wire Photoelectric Smoke Detector


System Sensor 4WB 4-Wire Photoelectric Smoke Detector


$30.25


Plug-in detector cable and included mounting base Ample wire entrance port In-line terminals that use SEMS screws Mounts to single-gang and octagonal backboxes, 4-square backboxes, or straight to the ceiling Stop-Drop 'N Lock attachment to base of device Detector cover and chamber can be removed for easy cleaning Integrated remote maintenance signaling Drift adjustment and smoothing algorit...

IEI International Electronics 2000E E style keypad


IEI International Electronics 2000E E style keypad


$144.96


The IEI 2000e can be installed as a stand-alone keypad or connected to most Wiegand access system controllers such as the IEI Hub Max. Operation modes are field selectable with no special programmer required. A unique IEI feature called Auto Voltage Sensing does not require any adjustments for the different input voltages as it recognizes the voltage and adjusts automatically. Operates at 10-30VDC...

IEI 2000EM 2000 ser eM style acs ctrl kp [0-294022]


IEI 2000EM 2000 ser eM style acs ctrl kp [0-294022]


$192.03


Series eM Style Flush-mount Metal Access Control Keypad...

RFID Reader # 28140 With 2 Transponder Tags - Parallax Inc


RFID Reader # 28140 With 2 Transponder Tags - Parallax Inc


$32.99


This Parallax RFID Reader Module (Serial version only) comes with two 54x85mm Rectangle Tags.

Designed in cooperation with Grand Idea Studio, the Parallax Radio Frequency Identification (RFID) Reader Module is the first low-cost solution to read passive RFID transponder tags. The RFID Reader Module can be used in a wide variety of hobbyist and commercial applications, including access control, au...


ACR122 NFC Contactless Reader/Writer


ACR122 NFC Contactless Reader/Writer


$100.00


The ACR122 is a PC-linked Contacless Smart Card Reader/Writer developed on the 13.56MHz Contactless (RFID) Technology and followed the ISO/IEC18092 Standard for Near Field Communication (NFC), supporting not only MifareĀ®, ISO 14443 A and B cards but also NFC and FeliCa contactless technologies.
The ACR122 is a USB Plug and Play device with the CCID compliance. It is ideal for both secure personal...

Universal Bluetooth Keyboard for HP iPAQ 2215


Universal Bluetooth Keyboard for HP iPAQ 2215


$145.00


Package includes:
Bluetooth Keyboard
Installation guide
Driver software
2 "AAA" batteries
Protective case...

Emprum UltiMate GPS Receiver for iPod touch, iPhone, iPad and desktop/laptop computers


Emprum UltiMate GPS Receiver for iPod touch, iPhone, iPad and desktop/laptop computers


$99.95


Emprum's UltiMate GPS plugs directly into the 30pin dock connector of your iPod touch, iPhone and iPad and can be used with your PC (Mac/Windows/Linux) as well.

The accessory is powered either by your iPod touch, iPhone or iPad, or over USB from your computer or wall charger.

How do we differ from the competition?

Emprum's UltiMate GPS is the only accessory on the market that provides a real ...



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