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