This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Arduino led. yellow not glowing SMD surfacemount device LED lightemitting diode on the Arduino NG board from arduino cc arduino cc The LED is marked with the Own DustyDingo PD see below Image Arduinoled Arduino NG Lightemitting diodes SMD