LED there be light: The impact of replacing lights at schools in South Africa - ScienceDirect
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LED there be light: The impact of replacing lights at schools in
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LED there be light: The impact of replacing lights at schools in
![LED there be light: The impact of replacing lights at schools in South Africa - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0378778821000207-gr1.jpg)
LED there be light: The impact of replacing lights at schools in
![LED there be light: The impact of replacing lights at schools in South Africa - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0378778821000207-ga1.jpg)
LED there be light: The impact of replacing lights at schools in
![LED there be light: The impact of replacing lights at schools in South Africa - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0378778821000207-gr4.jpg)
LED there be light: The impact of replacing lights at schools in
![LED there be light: The impact of replacing lights at schools in South Africa - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0378778821000207-gr2.jpg)
LED there be light: The impact of replacing lights at schools in
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