The **WLS28-2X990XPB** is a high-performance LED strip light manufactured by Banner Engineering. It is widely used in industrial environments for workspace and machine lighting due to its rugged design and efficient electronic architecture. ### 1. Key Technical Specifications The electronics of this specific model are designed for durability and consistent light output. | Feature | Specification | | :--- | :--- | | **Input Voltage** | 12V DC to 30V DC | | **Current Draw** | Max 2.0 A @ 12V DC / 0.8 A @ 30V DC | | **Lumens** | Approximately 2400 Lumens | | **Length** | 990 mm (Internal LED board length) | | **Color Temperature** | Cool White (approx. 6500K) | | **Connector Type** | 4-pin M12 Euro-style Quick Disconnect | --- ### 2. Internal Electronic Components #### A. LED Array and Circuitry The "990" designation refers to the length of the internal LED array. * **Constant Current Driver:** The device features internal circuitry that regulates current. This ensures that the brightness remains constant even if the input voltage fluctuates between 12V and 30V. * **Thermal Management:** The LEDs are mounted on an aluminum base (Metal Core PCB) that acts as a heat sink, pulling heat away from the diodes to prevent thermal degradation. #### B. The "XPB" Configuration (Push Button/ON-OFF) * **Integrated Switch:** The "PB" in the suffix stands for **Push Button**. Unlike standard models that rely solely on external power triggers, this model has an integrated electronic switch. * **Dimming Capability:** Many versions of the WLS28-2 series utilize **Pulse Width Modulation (PWM)** for dimming. When controlled via the M12 interface, the light can be dimmed by an external controller. --- ### 3. Wiring and Pinout (M12 Connector) The electronics interface with industrial controllers via a standard 4-pin M12 connector. | Pin | Wire Color | Function | | :--- | :--- | :--- | | 1 | Brown | +12V DC to 30V DC | | 2 | White | Not Used (or Dimming/Control) | | 3 | Blue | DC Common (Ground) | | 4 | Black | Not Used | --- ### 4. Electronic Protection Features To survive harsh industrial "noise" and electrical spikes, the internal PCB includes: 1. **Reverse Polarity Protection:** Prevents damage if the positive and negative wires are swapped during installation. 2. **Transient Voltage Suppression (TVS):** Protects the LEDs from voltage surges common in factory power grids. 3. **EMI Shielding:** Designed to minimize electromagnetic interference that could affect nearby sensitive sensors.