Question

lab: lightbulb efficiency
what does led stand for?
less energy dome
light emergence device
light emitting diode

Explanation:

LED is a common term in electronics. By recalling the standard definition, we know that LED is an abbreviation. Among the options, "Light Emitting Diode" is the correct full - form. "Less Energy Dome" and "Light Emergence Device" are not the standard definitions for LED.

Answer:

Light Emitting Diode