B.2 The Lighting Systems
B.2.1 System 1: Angkor Light
The Angkor Light (see Figure B.2.1, left) is a solar lantern fitted with a 3 W CFL and therefore able to deliver a considerable amount of light. The light can be used as a focused light (using the reflector) or as a general-purpose light (for lighting a room). The lantern contains a 4.5 Ah sealed lead–acid battery and comes with a 4.5 Wp solar panel.
B.2.2 System 2: Moonlight
The Moonlight is a smaller scale solar-lighting product. The lantern (pictured in Figure B.2.1, right) is powered by a 0.7 Wp solar panel. The energy that is produced in the daytime is stored in two AA NiCd batteries. This allows the Moonlight to produce light in the evening and night, using six light-emitting diodes (LEDs). The Moonlight can produce 29.5 lumens for 4 hours, or dimmed light for a longer period.
Figure B.2.1 Left: Overview of the Angkor Light's components (Kranen, 2007). Right: Conceptual overview of the Moonlight (Alvarez et al., 2008)
B.2.3 System 3: Solar Home System
The solar home system (SHS) that is used in this study is the Kamworks Solar Home System “medium” (see Figure B.2.2). This system is equipped with a 40 Wp Kyocera solar panel and a 48 Ah lead–acid battery. Also included are the home box (which contains the battery and charging electronics) and three 7 W compact fluorescent lights.
Figure B.2.2 Solar home system medium, home ...
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