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Frontiers in Energy

ISSN 2095-1701

ISSN 2095-1698(Online)

CN 11-6017/TK

Postal Subscription Code 80-972

2018 Impact Factor: 1.701

Front. Energy    2016, Vol. 10 Issue (4) : 466-472    https://doi.org/10.1007/s11708-016-0417-7
RESEARCH ARTICLE
Comparison of different energy saving lights using solar panel
Huzaifa MUBARAK(), Saad Bin Abul KASHEM
Sarawak Campus, Swinburne University of Technology, Kuching 93350, Malaysia
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Abstract

The recent trend in light emitting diode or LED lighting applications and their claimed energy saving capabilities together with their overall attractiveness has us all convinced that they really are a greener alternative to the compact fluorescent lights or CFL. As convincing as it seems, the actual energy saving capabilities of LEDs are yet to be proven scientifically or at the least, on an empirical level when compared to CFLs. This paper tackles the issue with the use of a solar cell by evaluating the photovoltaic current and voltage generated by the solar cell subjected to each lighting system. Graphical representations are drawn and a conclusion is then reached based on the amount of power generation in the solar cells in order to determine the energy saving capabilities of each lighting system and its efficiency. From the result, it has been found that an LED is 3.7 times more power efficient than a CFL based light source of equal wattage.

Keywords CFL      LED      empirical      solar      lumens      energy saving      fluorescent     
Corresponding Author(s): Huzaifa MUBARAK   
Just Accepted Date: 08 June 2016   Online First Date: 02 August 2016    Issue Date: 17 November 2016
 Cite this article:   
Huzaifa MUBARAK,Saad Bin Abul KASHEM. Comparison of different energy saving lights using solar panel[J]. Front. Energy, 2016, 10(4): 466-472.
 URL:  
https://academic.hep.com.cn/fie/EN/10.1007/s11708-016-0417-7
https://academic.hep.com.cn/fie/EN/Y2016/V10/I4/466
Fig.1  Types of CFLs and their general and specific applications
Fig.2  Configuration of all experiment
No. Type Color rendering Diameter/mm Equivalent wattage /W Shape Luminosity/lm Voltage rating/V Wattage/W
1 CFL 80 39.0 30 Candle 330 220–240 7.0
2 LED 80 36.5 20 Candle 330 220–240 5.5
3 Incandescent 80 55 - Globe - 220–240 100.0
4 CFL 80 45 22 Round 200 220–240 5.0
5 LED 80 60 77 Globe 1100 220–240 12.0
6 CFL 80 56 52 Round 625 220–240 12.0
Tab.1  Light sources and specifications
Fig.3  0% covered
Fig.4  25% covered
Fig.5  50% covered
Fig.6  75% covered
Fig.7  Center
Fig.8  Side where lines end
Fig.9  sides with long lines
Fig.10  Corner
Light source Wattage/W I-p power/W O-p power/W Power efficiency/%
5 12 12 0.370 3.08
6 12 12 0.100 0.83
Tab.2  Efficiencies of both light sources
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