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