30.0 MB (449.5 KB compressed)
3000 x 3500 pixels
25.4 x 29.7 cm ⏐ 10.0 x 11.7 in (300dpi)
POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY
Light-emitting diode (LED), cutaway computer artwork. LEDs contain a semiconductor (red square, centre left) that emits light when a current passes through it. The semiconductor is usually aluminium-gallium-arsenide. LEDs are used extensively in electrical devices and circuit boards to indicate the presence of a voltage.
Model release not required. Property release not required.