These are 60mm square and are made by Shell Solar from COPPER INDIUM DISELENIDE (CIS) technology and provide 4.5-5V volts open circuit and 100mA short circuit current. These test well at 250mW. You can connect them in series for more voltage, and in parallel for more current. These are good for walkway lights, battery charging, remote instrumentation or data loggers, educational projects, and other dc electrical applications, etc. The maximum power is not obtained until after an initial 2-3 hour exposure to sunlight. After this first exposure the semiconductor structure becomes permanently stabilized and functions at maximum efficiency. Shell solar report on these types of cells attached.
The product datasheet is available here to view
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