The **WLS28-2X430SPWM** is a high-quality industrial LED strip light manufactured by Banner Engineering. The "430" indicates a length of approximately 430mm, and the "PWM" suffix denotes its specific electronic control method. --- ### 1. Key Electronic Specifications The internal electronics are designed for industrial environments, focusing on durability and precise light output control. | Feature | Specification | | :--- | :--- | | **Input Voltage** | 12V DC to 30V DC | | **Current Draw** | Approx. 0.66A at 12V / 0.26A at 30V | | **Control Interface** | Pulse Width Modulation (PWM) | | **Input Protection** | Reverse polarity and transient voltage protected | | **LED Color** | Daylight White (Standard) | --- ### 2. Pulse Width Modulation (PWM) Circuitry The "SPWM" designation is the most critical electronic feature of this model. Unlike standard ON/OFF lights, this unit contains internal circuitry that interfaces with an external PWM signal. * **Dimming Capability:** By cycling the power at high frequencies, the electronic controller allows the user to adjust brightness from 0% to 100%. * **Signal Frequency:** Typically accepts a frequency range that prevents visible flickering (usually up to several kHz). * **Third-Wire Control:** Usually involves a specific wire (often white or gray depending on the cable) designated for the PWM control signal relative to the common ground. --- ### 3. Internal Component Architecture The device is built using robust Solid-State technology: 1. **LED Driver:** A constant-current switching regulator that ensures the LEDs maintain consistent brightness regardless of fluctuations in the 12-30V DC input. 2. **Thermal Management:** The electronics are mounted on an aluminum base which acts as a heat sink to dissipate heat generated by the LEDs and the driver circuit. 3. **Encapsulation:** The internal PCB is typically housed in a polycarbonate shell, protecting the electronic components from vibrations and impacts. --- ### 4. Wiring and Pinout (M12 Connector Models) If the unit uses a standard 4-pin M12/Euro-style connector, the electronic interface is generally mapped as follows: | Pin | Wire Color | Function | | :--- | :--- | :--- | | 1 | Brown | +12V DC to +30V DC | | 2 | White | PWM Control Signal (Input) | | 3 | Blue | DC Common (Ground) | | 4 | Black | Not Used / No Connection | ---