photoelectric cell test

electronics multimedia gauge photoelectric cells tiny solar cell voltage test multimeter focused laboratory engineering solar-battery battery tool tester background instrument technician electrician solar-energy solar-cells energy-module power voltmeter current storage photoelectric-cell photovoltaic sunlight ammeter photons consumer-electronics electric digital equipment electrical electronic electricity vintage physical 5-volt plasmons electrical-power-generation solar-panels lab environment technology black dc-voltage avo-meter solar-powered small