For small trial orders (under 100kg), International Express (DHL/FedEx/UPS) is fastest, typically taking 3-7 business days. For bulk commercial orders, Sea Freight (LCL or FCL) is the most economical, though it requires 25-40 days. Given the sensitivity of built-in batteries, ensure the supplier provides proper labeling and specialized inner packaging to prevent accidental activation or short-circuiting during transit. Always clarify the Incoterms (e.g., FOB or DDP) to understand who is responsible for import duties and local delivery.