1.Wire insulation layer is not using high-quality plastic insulation system, but using recycled plastic made, gently peel can the insulating layer peel, so easily caused insulation layer is current strike wear and leakage, on the user's safety of life and property caused a great threat.

2.conductive wire core DC resistance is not qualified. Wire conductor thickness and quality determines the wires on the current load, if the wire line core the use of inferior materials and the actual cross section is far less than the marked with the specifications, long-term use of fever caused by conductor resistance over the general assembly, causing electrical fire risk.