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