Kapcsolóval

Kapcsolóval is the instrumental case form of the Hungarian noun kapcsoló, meaning a switch or switching device. It is used to express the means or instrument by which an action is performed, roughly equivalent to “with a switch” in English. In Hungarian, the instrumental suffix is -val or -vel, chosen according to vowel harmony: -val after back vowels, -vel after front vowels. Since kapcsoló ends with a back vowel (ó), the correct form is kapcsolóval.

Usage of kapcsolóval centers on indicating how something is operated or controlled. It often appears in sentences describing how to turn devices on or off, or how to adjust settings using a switch. The construction is neutral and common in technical, instructional, and everyday language.

Examples:

- A lámpát a kapcsolóval kapcsolom be. (I turn on the lamp with the switch.)

- A készüléket kapcsolóval lehet ki- és bekapcsolni. (The device can be turned on and off with the switch.)

- A fényerő szabályozható kapcsolóval. (The brightness can be controlled with the switch.)

Related forms include other instrumental constructions with -val/-vel for different nouns, and plural forms such as kapcsolókkal (with switches) when referring to multiple devices. Kapcsolóval thus functions as a concise way to specify tool-based or device-based means in Hungarian sentences.