Answer: Unlimited splicing is not possible. The splicing length is limited by the power supply and the wire diameter of the light strip; core notes: ① Power matching: 80% of the rated power of the total power supply after splicing (leaving for redundancy); ② Length limit: A single splicing of 220V high-voltage neon light strips does not exceed the manufacturer's regulations (within 50 meters). Excessive length will cause the terminal voltage to attenuate and the brightness to dim; ③ Waterproofing: Outdoor joints need to be sealed with waterproof joints/glued heat shrink tubes to avoid water ingress and short circuits.