2026-08-22
Guangzhou is the world’s top manufacturing base for custom LED light boxes and illuminated signage, attracting countless global retailers, brand franchisees, and signage contractors every year. However, mixed suppliers, uneven product quality, and irregular trading modes often cause order failures, quality defects, and economic losses for overseas buyers. This professional guide summarizes 7 most common and costly sourcing pitfalls when cooperating with Guangzhou light box suppliers, providing p