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GCIT1015 - Section 2
Chan Hei Man (13215760)
Chan Nok Yiu (13204270)
Li Yue (13250094)
November 27, 2013
Objectives
 Examine the development in lighting over the years
 Discover the advantages and disadvantages of LED light
 Investigate if the improvements in lighting are consistent

with users’ preference on various aspects (E.g. price,
design, etc. )

 Find out how the innovation in lighting can improve our

daily lives on various aspects (E.g. home, office, industries,
etc.)

 Raise public’s concern on energy conservation
Work Division
Task

Member

Project Background & Content

Chan Hei Man, Chan Nok Yiu, Li Yue

Survey & Data Processing

Chan Hei Man, Chan Nok Yiu, Li Yue

Data Analysis

Chan Hei Man, Chan Nok Yiu, Li Yue

Multimedia Content

Chan Nok Yiu, Li Yue

Conclusion

Chan Hei Man, Li Yue

PowerPoint Design

Chan Hei Man, Chan Nok Yiu
Search Strategies
Mind Map
Presentation Flow
Project Background
---Developments in lighting
Incandescent
bulb

Fire
Gaslights

LED Lights
Oil
Lights

Fluorescent
bulb
Electric
Lights

• SMD LED bulb
• COB LED bulb
• MCOB LED
bulb
Development of light bulbs
Online Survey
 Target: The General Public
 https://qtrial.qualtrics.com/SE/?SID=SV_0wdb8yjHy

N047u5
Chart 1: Users’ expectations when
purchasing light bulbs
Relative Importance of Various Factors
When Purchasing Light Bulbs
(1:Most Important; 5:least Important)
Price

Life span

4.5
4
3.5
3
2.5
2
1.5
1
0.5
0

3.5

3

Design
4.5

2.5

Energy
consumption

4

Brightness
Chart 2: Users’ Opinions LED Light bulbs
(Advantages)
Users’ Opinions on the Advantages of LED Light
Bulbs Over Traditional Tungsten Light Bulbs
Price
10%

Life span
26%

Design
15%

Energy
consumption
29%

Brightness
20%
Advantages of LED lights
 Environmentally friendly
 Energy efficient
 Durable
 Controllable
Chart 3: Users’ Opinions LED Light bulbs
(Disadvantages)
Users' Opinions on the Disadvantages of LED Lights
70
63.625
60
52.69
49.92

50

Expensive

43.29

Color Shift

40

Not Stable
32.98

Not Technical

30
Not as Flexible as
Incandescent Lamps
20

10

0
Expensive

Color Shift

Not Stable

Not Technical

Not as Flexible as
Incandescent Lamps
Disadvantages of LED lights
 Shift color due to age and temperature
 Must be supplied with the correct voltage and current

at a constant flow
 Restricted by the technology

 Maybe more expensive than

incandescent lights
Chart 4: Users’ Opinions LED Light bulbs
(Applications)
Interviewees' opinions on the possible use of LED lights
80
68.75

70

62.5

77.08
66.67

68.75
66.67

60

70.83

50
40
30
20
10
0
Retail

Outdoor
spaces

Industry

Household

Offices
Healthcare

Hospitality
Applications of LED lights
 Household
 Office
 Retail
 Hospitality
 Industry
 Outdoor area

 Healthcare
Video (Applications)
Chart 5: Users’ Awareness on
Energy Conservation
Rating on
Energy Conservation Awareness

7.5

Yourself

Hong Kong
People

5

0

1

2

(0: Least concern)

3

4

5

6

7

8

9

10

(10: Most concern)
Conclusion
LED lights:
 Most significant symbol of innovation in lighting
 Increasing importance to our daily life
 Ideal for many applications
 Still have some drawbacks
 Allow us to live a more energy efficient and ecofriendly life
References
 Wikipedia
 http://zh.wikipedia.org/zh-tw/%E7%87%88
 Youtube
 https://www.youtube.com/watch?v=9OdOkU7JWX8
 https://www.youtube.com/watch?v=jT8WUqURjMk
 Other websites
 http://www.continental-lighting.com/ledbasics/advantages-disadvantages.php
 http://www.prweb.com/releases/2013/9/prweb11122962.ht
m
 http://www.lighting.philips.com.hk/en
 http://www.sunshinelamp.net/
References
 Newspaper
 Vogel, B. (2013). Inter airport
europe 2013: LED specialists
unveil new products. Jane's
Airport Review, 25(10) Retrieved
from
http://search.proquest.com/doc
view/1442191883?accountid=1144
0
 Journal
 Global LED lighting market
worth $42 billion by 2019.
(2013, Oct 09). M2 Presswire.
Retrieved from
http://search.proquest.com/doc
view/1440186835?accountid=1144
0
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Innovation in lighting latest

  • 1. GCIT1015 - Section 2 Chan Hei Man (13215760) Chan Nok Yiu (13204270) Li Yue (13250094) November 27, 2013
  • 2. Objectives  Examine the development in lighting over the years  Discover the advantages and disadvantages of LED light  Investigate if the improvements in lighting are consistent with users’ preference on various aspects (E.g. price, design, etc. )  Find out how the innovation in lighting can improve our daily lives on various aspects (E.g. home, office, industries, etc.)  Raise public’s concern on energy conservation
  • 3. Work Division Task Member Project Background & Content Chan Hei Man, Chan Nok Yiu, Li Yue Survey & Data Processing Chan Hei Man, Chan Nok Yiu, Li Yue Data Analysis Chan Hei Man, Chan Nok Yiu, Li Yue Multimedia Content Chan Nok Yiu, Li Yue Conclusion Chan Hei Man, Li Yue PowerPoint Design Chan Hei Man, Chan Nok Yiu
  • 7. Project Background ---Developments in lighting Incandescent bulb Fire Gaslights LED Lights Oil Lights Fluorescent bulb Electric Lights • SMD LED bulb • COB LED bulb • MCOB LED bulb
  • 9. Online Survey  Target: The General Public  https://qtrial.qualtrics.com/SE/?SID=SV_0wdb8yjHy N047u5
  • 10. Chart 1: Users’ expectations when purchasing light bulbs Relative Importance of Various Factors When Purchasing Light Bulbs (1:Most Important; 5:least Important) Price Life span 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 3.5 3 Design 4.5 2.5 Energy consumption 4 Brightness
  • 11. Chart 2: Users’ Opinions LED Light bulbs (Advantages) Users’ Opinions on the Advantages of LED Light Bulbs Over Traditional Tungsten Light Bulbs Price 10% Life span 26% Design 15% Energy consumption 29% Brightness 20%
  • 12. Advantages of LED lights  Environmentally friendly  Energy efficient  Durable  Controllable
  • 13. Chart 3: Users’ Opinions LED Light bulbs (Disadvantages) Users' Opinions on the Disadvantages of LED Lights 70 63.625 60 52.69 49.92 50 Expensive 43.29 Color Shift 40 Not Stable 32.98 Not Technical 30 Not as Flexible as Incandescent Lamps 20 10 0 Expensive Color Shift Not Stable Not Technical Not as Flexible as Incandescent Lamps
  • 14. Disadvantages of LED lights  Shift color due to age and temperature  Must be supplied with the correct voltage and current at a constant flow  Restricted by the technology  Maybe more expensive than incandescent lights
  • 15. Chart 4: Users’ Opinions LED Light bulbs (Applications) Interviewees' opinions on the possible use of LED lights 80 68.75 70 62.5 77.08 66.67 68.75 66.67 60 70.83 50 40 30 20 10 0 Retail Outdoor spaces Industry Household Offices Healthcare Hospitality
  • 16. Applications of LED lights  Household  Office  Retail  Hospitality  Industry  Outdoor area  Healthcare
  • 18. Chart 5: Users’ Awareness on Energy Conservation Rating on Energy Conservation Awareness 7.5 Yourself Hong Kong People 5 0 1 2 (0: Least concern) 3 4 5 6 7 8 9 10 (10: Most concern)
  • 19. Conclusion LED lights:  Most significant symbol of innovation in lighting  Increasing importance to our daily life  Ideal for many applications  Still have some drawbacks  Allow us to live a more energy efficient and ecofriendly life
  • 20. References  Wikipedia  http://zh.wikipedia.org/zh-tw/%E7%87%88  Youtube  https://www.youtube.com/watch?v=9OdOkU7JWX8  https://www.youtube.com/watch?v=jT8WUqURjMk  Other websites  http://www.continental-lighting.com/ledbasics/advantages-disadvantages.php  http://www.prweb.com/releases/2013/9/prweb11122962.ht m  http://www.lighting.philips.com.hk/en  http://www.sunshinelamp.net/
  • 21. References  Newspaper  Vogel, B. (2013). Inter airport europe 2013: LED specialists unveil new products. Jane's Airport Review, 25(10) Retrieved from http://search.proquest.com/doc view/1442191883?accountid=1144 0  Journal  Global LED lighting market worth $42 billion by 2019. (2013, Oct 09). M2 Presswire. Retrieved from http://search.proquest.com/doc view/1440186835?accountid=1144 0