Intelligent reverse connection protection prevents damage to the IC if power is connected in reverse, enhancing reliability in variable installation environments. The control circuit and the RGB LED chip are integrated into a single 3528 package to form a complete external control pixel, enabling compact and straightforward design integration. The IC control circuit and the LED share a common power supply, reducing wiring complexity and simplifying system power design. Builtin signal shaping circuit ensures each pixel receives a waveformshaped signal before output, preventing cumulative waveform distortion along the data line for stable color and brightness performance. Key attributes Function: complete external control pixel with integrated control circuit and RGB LED in a single 3528 package. Packaging: 3528 size, suitable for compact LED strips, modules, or signage installations. Protection: intelligent reverse connection protection to safeguard the IC during incorrect power wiring. Power design: IC and LED share a single power supply, simplifying wiring and compatibility with common controller systems. Signal integrity: builtin waveform shaping circuit preserves signal quality across multiple pixels and long runs. Performance: designed to maintain consistent color output and reduce timingrelated issues by shaping input signals at each pixel. Applications and use scenarios LED signage and displays: easily integrate into external control pixel arrays for clear color rendering and reliable operation in signs, banners, and messaging displays. Architectural and decorative lighting: suitable for building facades, coves, and contour lighting where compact pixels and robust protection improve installation flexibility and reliability. Stage, event, and entertainment lighting: useful for backdrops, set pieces, and decorative lighting where compact pixels and stable signal transmission are important for consistent visual effects.