First introduced in 1962, early LEDs emitted high-intensity red light and were used as indicator lights for many years.

Name: First introduced in 1962, early LEDs emitted high-intensity red light and were used as indicator lights for many years.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Early LEDs introduced in 1962 emitted low-intensity infrared light, not high-intensity red light. The first visible red LEDs were developed later.

First Introduced in 1962, Early LEDs Emitted High-Intensity Red Light