Light-emitting diode practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared light. Infrared LEDs are still frequently used as transmitting elements in remote-control circuits, such as those in remote controls for a wide variety of consumer electronics. The first visible-light LEDs were of low intensity and limited to red. Modern LEDs are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness. Early LEDs were often used as indicator lamps for electronic devices, replacing small incandescent bulbs. They were soon packaged into numeric readouts in the form of seven-segment displays and were commonly seen in digital clocks. Recent
Toyota Prius Plug-in Hybrid included charging cable connects to the charging port inlet located on the right-rear fender. The charge port location was moved from the front driver-side fender in the demonstration model based on input from the program participants. The battery charger cable weighs just , is in length, and fits in its own compartment in the trunk area. The charge port provides LED (Light Emitting Diode) illumination for convenient night-time charging. A timer allows charging to take place during off-peak hours and can be set for either a start or end time. According to Toyota the Prius plug-in was expected to be