The 5050 is equipped with an internal IC, has a 12V/7mm board width, and offers a fine single-lamp single-control light and shadow effect. It is available in two types: rainproof and non-rainproof, and is compatible with both interior and exterior illuminated letters. Double-layer thickened copper sheet, resistant to bending, with reverse connection protection, anti-interference breakpoint continuation, multi-segment synchronization without color skipping.