Voltcraft MS-400 Multi-Tester CAT III 1000V

LED - Light Emitting Diode - a small light source

AC - Alternating Current

Dark - A colour which absorbs visable ligt so apears less light than objects that reflect light

Red - One of the three primary colours

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

Voltage - A measurement of volts.

Glow - Something that gives out a steady light.

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