According to Chinese regulations, low-power electrical modifications to the Refine M3 camper, such as LED lights and USB ports, do not require approval. However, installing high-power appliances like parking air conditioners or inverters above 2000W, or altering the original wiring structure, requires consultation or filing with the vehicle management office. A documented case by owner Zeng Zhaoqing, who used a 12V auxiliary battery and 1000W inverter without filing, passed routine checks. The key criterion is whether the modification changes registered technical parameters under the Motor Vehicle Registration Regulations.
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