LEDs Basic
Created on 23rd June 2025
Grade level: Grade 12th grade
10 plays
36 Questions
Basics of LED lights
Questions (36)
1. What does LED stand for?
Light Emitting Diode
4 choice options
2. Which type of LED light is known for its high efficiency and compact size?
COB lights
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3. What is a common application for strip lights?
Backlighting and decorative lighting
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4. What is the primary function of a driver in an LED lighting system?
To convert AC to DC and supply the required current
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5. Which type of light is typically used for accent lighting in homes?
Track lights
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6. What is the advantage of using panel lights?
Slim design allows for easy installation in ceilings
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7. What is a characteristic of COB lights?
They have multiple chips closely packed together
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8. What is a disadvantage of strip lights?
They can be less bright than other types
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9. What is the purpose of a heat sink in LED lighting?
To dissipate heat and prolong LED life
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10. How do track lights differ from fixed ceiling lights?
They can be adjusted and repositioned
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11. Which type of LED light is often used in commercial applications for its wide coverage?
Panel lights
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12. What is the typical voltage of LED strip lights?
12V or 24V
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13. Which type of LED light is most energy-efficient?
COB lights
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14. What is a typical application for COB lights?
Theatrical lighting and display lighting
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15. What is the significance of CRI in LED lighting?
It measures the color rendering ability of the light
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16. What is a common feature of LED drivers?
They regulate the voltage and current to LEDs
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17. Which type of lighting is best for providing general illumination in a room?
Panel lights
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18. What is a potential drawback of LED lighting compared to traditional lighting?
Higher upfront cost
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19. What does LED stand for?
Light Emitting Diode
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20. Which type of LED light is known for its high efficiency and compact design?
COB Lights
4 choice options
21. What is a common use for LED Strip Lights?
Accent lighting
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22. How do LED Panel Lights compare to traditional fluorescent lights?
All of the above
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23. What is the purpose of an LED driver?
To convert AC to DC power
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24. Which type of lighting is typically used in galleries and museums?
Track Lights
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25. What is a benefit of using COB lights?
Higher lumens per watt
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26. What material is commonly used for LED Strip Lights?
Copper
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27. What is one of the main advantages of LED Panel Lights?
They provide uniform light distribution
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28. What does the term 'lumen' measure in terms of LED lights?
Light output
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29. In which application would you most likely find LED Track Lights?
In retail environments
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30. What is the main function of a driver in an LED system?
To regulate current to the LEDs
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31. Which LED technology provides a more focused beam of light?
COB Lights
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32. How do LED Strips typically get powered?
Through a power adapter
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33. What is a common color temperature for LED lights?
All of the above
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34. What type of LED light is typically used for high bay lighting in warehouses?
High-output LED fixtures
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35. What is the primary benefit of using LED lights over traditional incandescent bulbs?
Longer lifespan
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36. Which type of lighting solution is most suitable for under-cabinet lighting in kitchens?
Strip Lights
4 choice options