A white-light-emitting inorganic light-emitting-diode (iLED) structure , comprising: first iLEDs , each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs ; and a second iLED electrically connected to one of the first iLEDs , the second iLED emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs , characterized in that : the first iLEDs comprise a red first iLED that emits red light, a green first iLED that emits green light, and a blue first iLED that emits blue light and the second iLED comprises a green second iLED that emits green light electrically connected in parallel with the green first iLED ; the red first iLED and the blue first iLED are electrically connected in series with the green first iLED and the green second iLED that are connected in parallel; the green first iLED and the green second iLED each have a green efficiency vs. current density that has a green efficiency maximum and the blue first iLED has a blue efficiency vs. current density that has a blue efficiency maximum ; and the green efficiency maximum for the green first iLED and the green second iLED is less than the blue efficiency maximum . first iLEDs , each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs ; and a second iLED electrically connected to one of the first iLEDs , the second iLED emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs , characterized in that : the first iLEDs comprise a red first iLED that emits red light, a green first iLED that emits green light, and a blue first iLED that emits blue light and the second iLED comprises a green second iLED that emits green light electrically connected in parallel with the green first iLED ; the red first iLED and the blue first iLED are electrically connected in series with the green first iLED and the green second iLED that are connected in parallel; the green first iLED and the green second iLED each have a green efficiency vs. current density that has a green efficiency maximum and the blue first iLED has a blue efficiency vs. current density that has a blue efficiency maximum ; and the green efficiency maximum for the green first iLED and the green second iLED is less than the blue efficiency maximum . the first iLEDs comprise a red first iLED that emits red light, a green first iLED that emits green light, and a blue first iLED that emits blue light and the second iLED comprises a green second iLED that emits green light electrically connected in parallel with the green first iLED ; the red first iLED and the blue first iLED are electrically connected in series with the green first iLED and the green second iLED that are connected in parallel; the green first iLED and the green second iLED each have a green efficiency vs. current density that has a green efficiency maximum and the blue first iLED has a blue efficiency vs. current density that has a blue efficiency maximum ; and the green efficiency maximum for the green first iLED and the green second iLED is less than the blue efficiency maximum . <EOS>