The **LEDSL4DG** is part of the Sylvania (LEDVANCE) DUALselect series. Specifically, it refers to a 4-inch LED recessed downlight gimbal. Its electronic design focuses on versatility, allowing the user to adjust both the physical light direction and the electrical output (color temperature). --- ## 1. Core Electronic Components The electronics of the LEDSL4DG are integrated into a compact driver housing and the LED board itself. | Component | Function | | :--- | :--- | | **SMD LED Array** | Surface Mount Device LEDs that provide the actual light source. These are usually arranged in a circular pattern. | | **CCT Selectable Switch** | A physical toggle switch connected to the driver that changes the resistance/current path to alternate between color temperatures (e.g., 2700K to 5000K). | | **Constant Current Driver** | Converts AC mains power (120V) to low-voltage DC power while maintaining a steady current to prevent LED flickering. | | **TRIAC Dimming Circuit** | Built-in circuitry compatible with phase-cut dimmers, allowing the light to be dimmed down to ~10%. | | **Thermal Foldback** | A safety feature in the driver that reduces current if the unit exceeds safe operating temperatures. | --- ## 2. Technical Specifications Below are the typical electronic ratings for the 4" DUALselect Gimbal series: | Specification | Value/Range | | :--- | :--- | | **Input Voltage** | 120V AC, 60Hz | | **Wattage** | ~9W to 10W (Standard 65W equivalent) | | **Power Factor** | >0.90 | | **THD (Total Harmonic Distortion)** | <20% | | **Selectable CCT** | 2700K, 3000K, 3500K, 4000K, 5000K | | **Efficacy** | ~70-80 Lumens per Watt | --- ## 3. Wiring and Connection The LEDSL4DG uses a simplified wiring system designed for easy installation without a traditional recessed can (canless design). ```javascript // Wiring Configuration Structure { "Wire_Colors": { "Black": "Line (Hot)", "White": "Neutral", "Green": "Ground" }, "Connection_Type": "Hardwired to Junction Box", "Quick_Connect": "DC plug between Junction Box and LED Trim" } ``` --- ## 4. Key Electronic Features ### DUALselect Technology The "DUAL" in the name refers to the ability to select two main variables (though in modern versions, it primarily refers to the **Color Selection** and **Lumen Output** compatibility). The electronic switch on the back of the fixture adjusts the ratio of power between "Warm White" and "Cool White" LED chips to achieve the desired Kelvin temperature. ### Gimbal Mechanism While the gimbal is a mechanical feature (allowing 360° rotation and 30° tilt), the **ribbon cable** connecting the driver to the tilting LED board is reinforced to handle the physical movement without causing electrical shorts or fatigue. ---