405-NKL2-CWO

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--

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IntroductionPanel Indicators and Pilot Lights have been utilized for a number of industrial applications in both electrical and electronic industries.  The 405-NKL2-CWO (Hereafter referred to as 405-NKL2) is an LED based indicator and pilot light designed and manufactured by EFI Wholesale. This article will explore the application field and working principle of the 405-NKL2. Application FieldThe 405-NKL2 is mainly used for industrial signal and switchgear controls in both electrical and electronic industries. It is employed in projects such as power plants, factories, hospitals and school buildings. The 405-NKL2 is designed as a one-way lamp with both positive and negative voltage connections, and a rugged brass body encased in a glass tube to provide a high level of protection against moisture and dust. The 405-NKL2 comes in either an on/off or flashing/blinking mode for use in various operation scenarios. Additionally, the 405-NKL2 can be wired to devices powered by batteries that have a voltage range of 20V to 28V DC.Working PrincipleThe 405-NKL2 is an LED based indicator and pilot light. Led stands for light emitting diode, and it is composed of two terminals connected to an appropriate power source. When an electric current passes through the LED, it emits visible light in the form of photons. The light emitted is proportional to the power supplied to the LED, and this relationship is known as the “Luminosity-Voltage” characteristic of the LED. The 405-NKL2 is composed of two parts, the indicator light, and the base unit. The indicator light is composed of one or two LED based light elements. The base unit is made up of a printed circuit board containing control electronics. The control electronics is responsible for controlling the indicator lights and is powered by the internal battery. A switch located on the base unit is used to turn the indicator light on or off.The LED light in the 405-NKL2 is configured as a one-way lamp which turns on when the voltage is applied to the LED terminals. A resistor is connected to the anode of the LED to limit the current and ensure a constant light intensity. The 401-NKL2 supports two modes of operation depending on the control switch position. In the “on/off” mode, the LED light is turned on or off by the switch. In the “flashing/blinking” mode, the LED flashes at a predetermined frequency by controlling the duration that the voltage is applied to the LED terminals. ConclusionThe 405-NKL2 is an LED based indicator and pilot light designed and manufactured by EFI Wholesale for industrial signal and switchgear controls. The 405-NKL2 is composed of two parts, the indicator light and the base unit. The indicator light is composed of one or two LED based light elements, while the base unit is made up of a printed circuit board containing control electronics. The LED light in the 405-NKL2 is configured as a one-way lamp which turns on when the voltage is applied to the LED terminals. The 405-NKL2 comes in two modes of operation, including an on/off mode and a flashing/blinking mode.

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