The **WLS28-2..430XPWM** is a specific model within Banner Engineering’s WLS28-2 series of LED strip lights. The "430" refers to the length (430mm), and the "PWM" indicates that the light is designed for **Pulse Width Modulation** control. --- ### Core Electronic Specifications | Component/Feature | Detail | | :--- | :--- | | **Input Voltage** | 12V DC to 30V DC | | **Current Consumption** | Approx. 0.66A at 12V / 0.26A at 30V | | **Control Signal** | PWM (Pulse Width Modulation) | | **PWM Frequency** | Recommended 100 Hz to 5 kHz | | **Duty Cycle Range** | 0% (Off) to 100% (Full Brightness) | | **LED Color** | Daylight White (Standard for the 'X' code) | --- ### Electronic Architecture #### 1. Pulse Width Modulation (PWM) Integration Unlike standard "On/Off" models, the PWM variant contains internal circuitry that interprets a high-speed switching signal. * **Dimming:** By varying the duty cycle (the ratio of "on" time to "off" time), the light output can be dimmed smoothly without flickering or color shifting. * **Isolation:** The electronics are designed to handle the rapid switching transients without degrading the life of the LEDs. #### 2. Constant Current Driver The internal PCB includes a constant current regulator. This ensures that even if the input voltage fluctuates (e.g., between 12V and 30V), the current flowing through the LEDs remains stable. This prevents overheating and extends the LED lifespan to 50,000+ hours. #### 3. Wiring and Pinout (M12 Connector) Most PWM models use a 4-pin M12/Euro-style quick disconnect. The electronic interface typically follows this logic: | Pin | Wire Color | Function | | :--- | :--- | :--- | | **1** | Brown | +12 to 30V DC | | **2** | White | PWM Input Signal (Low/High) | | **3** | Blue | DC Common (Ground) | | **4** | Black | Not Used / Optional Control | --- ### Thermal and Protective Features * **Overvoltage Protection:** The internal circuitry protects the LEDs from spikes in the power supply. * **Reverse Polarity Protection:** Prevents damage if the positive and negative leads are swapped during installation. * **Thermal Management:** The electronics are mounted to an aluminum housing which acts as a heat sink, dissipating the thermal energy generated by the 430mm LED array. ---