Intelligent reverse polarity protection prevents IC damage from power supply reversal. The IC control circuit and LED light source share a common power supply. The control circuit and RGB chip are integrated into a 3528-package component, forming a complete externally controlled pixel. Built-in signal reshaping circuit ensures waveform distortion does not accumulate—each pixel reshapes the incoming signal before forwarding it. Built-in power-on and power-down reset circuits. Each pixel supports 256 brightness levels per channel, enabling full-color display of 16,777,216 colors with a scanning frequency of at least 400 Hz. Serial cascade interface allows data reception and decoding via a single signal line. No additional circuitry is required for transmission distances under 5 meters between any two pixels. With a 30 Hz refresh rate, up to 1024 pixels can be cascaded. Data transmission speed reaches 800 Kbps. Light color is highly consistent and cost-effective. Color: White. Material: Plastic. Package Contents: 250 x RGB Symphony LEDs. Only the items listed are included; all other accessories are excluded. Note: Lighting conditions and screen variations may cause slight color differences between the image and the actual product. Measurement tolerance: ±1–3 cm.