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Magical LED Lights
Contributed by: Foster
  • 1. What does LED stand for?
A) Light Emitting Diode
B) Luminous Energy Display
C) Long Electric Device
D) Laser Emitting Device
  • 2. What is the main advantage of LED lights over traditional incandescent bulbs?
A) Cost effectiveness
B) Energy efficiency
C) Brightness
D) Color variety
  • 3. Can LED lights change color?
A) No
B) Only once
C) Varies by brand
D) Yes
  • 4. How long can LED lights typically last compared to traditional bulbs?
A) Slightly longer
B) About the same
C) Only half as long
D) Much longer
  • 5. What does the term 'color temperature' refer to in LED lights?
A) Time taken to change colors
B) Efficiency of light output
C) Warmth or coolness of light
D) Number of colors emitted
  • 6. Which type of LED light can be controlled remotely using a smartphone?
A) Regular LED
B) Dumb LED
C) Smart LED
D) Basic LED
  • 7. What is a characteristic of LED lights that makes them popular for outdoor use?
A) Weight
B) Temperature sensitivity
C) Wavelength
D) Durability
  • 8. LED lights are commonly used in __________ signs.
A) Paper
B) Neon
C) Vinyl
D) Wooden
  • 9. LED lights do not produce as much __________ as traditional incandescent bulbs.
A) Heat
B) Noise
C) Vibration
D) Light
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