Einhell 4512040 Power X-Change Battery & Charger Starter Kit 18V
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LED - Light Emitting Diode - a small light source

Battery - A device used for the storage of electricity

Key - A physical or virtual device or code used for opening something

Quality - An object that has quality is superior in function and finish than a less quality object.

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

Voltage - A measurement of volts.

Li-ion - A rechargable battery. Popular in portable electronics combining one of the best energy densities and not suffering memory effect. Very slow loss of charge when not in use.

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