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Product Name: KEYES Double color Yin LED module

Name: 3MM red and green LED module 
Arduino special learning modules 
Operating Voltage: DC 3-5V 
Features: 
1, single-channel signal output; 
2, with mounting holes for easy fixed installation; 
4, the output switch circuit board, which can be accessed microcontroller IO port directly.

Name: 3MM red and green LED module

Arduino special learning modules

Operating Voltage: DC 3-5V

Features:

1, single-channel signal output;

2, with mounting holes for easy fixed installation;

4, the output switch circuit board, which can be accessed microcontroller IO port directly.