Keithley 2260B-800-1 Programmable DC Power Supply, 800V, 1.44A,
360W

LED - Light Emitting Diode - a small light source

DC - Direct Current

Battery - A device used for the storage of electricity

Stress - Also known as tension, a situation where a human can not cope with emotional or physical threats

LED - Light Emitting Diode. A bulb that is very efficient at producing light. Often small.

Wide - Something with a large width.

Voltage - A measurement of volts.

Bench - Usually a long wooden chair found outdoors.

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