Light-emitting diode ways of producing white light-emitting diodes (WLEDs), LEDs that generate high-intensity white light. One is to use individual LEDs that emit three primary colors—red, green, and blue—and then mix all the colors to form white light. The other is to use a phosphor material to convert monochromatic light from a blue or UV LED to broad-spectrum white light, much in the same way a fluorescent light bulb works. The 'whiteness' of the light produced is essentially engineered to suit the human eye. The yellow phosphor in LEDs is cerium-doped YAG crystal, in powder form and may be suspended in plastic,
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