China’s winter sourcing market offers many electric blankets and portable heaters, but price should not lead the decision. Safety must come first. IEC 60335 requirements provide a practical framework for evaluating household electrical appliances. For blankets, review the applicable IEC 60335-2-17 requirements. For room heaters, check IEC 60335-2-30 and the relevant national deviations.
Before purchase, confirm the applicable IEC 60335 edition and testing scope. Request test reports from an independent, competent laboratory. Check insulation, leakage current, temperature control, wiring protection, and abnormal-operation results. A reliable electric blanket should show stable heating across its surface. Look for secure connectors, strain relief, and clear washing instructions. Moisture is a serious concern. Even small design gaps can create dangerous hot spots.
For heaters, inspect tip-over protection, overheat cut-off, flame-resistant materials, plug design, and enclosure strength. Test samples under blocked airflow and repeated switching. Do not rely only on factory documents. Visit the production site when possible, and compare mass-production units with approved samples. Packaging should protect controls and cords from crushing during shipment.
A common mistake is treating compliance paperwork as proof of every shipment’s quality. It is not. Specifications can change quietly. I would record component details, temperature limits, markings, manuals, and carton labels before placing an order. Ask suppliers to notify you about substitutions. The process may feel slow. That is preferable to discovering a safety weakness beside a customer’s bed or heater.