ONPOW Offers Guide on Wiring Four-Pin Push Button Switches
ONPOW Push Button Manufacture Co., Ltd. has released a guide detailing the wiring process for four-pin push button switches, including illuminated models.

ONPOW Push Button Manufacture Co., Ltd. has published a guide to explain the proper wiring of four-pin push button switches. The instruction addresses both illuminated and non-illuminated versions of the component.
The guide emphasizes understanding the function of each of the four pins before beginning installation. Using its GQ16 series as an example, ONPOW explains that two pins are typically for powering the LED indicator, while the other two control the circuit. LED pins are often marked with '+' and '-' symbols, and circuit pins with 'NO' (normally open) or 'NC' (normally closed).
Crucially, users must confirm that the voltage requirement for the LED indicator matches the power supply of the circuit. Incorrect voltage can prevent the LED from functioning or cause damage. The company advises verifying the LED's voltage needs prior to connection.
For button switches where all four pins are designated for circuit control, commonly found in non-illuminated models, the importance of correct wiring to avoid circuit errors is highlighted. ONPOW offers over 40 series of push button switches for various applications.