1. Flame Retardant: Both ends with male and female connectors, the shell is made of PPO insulation and flame retardant material, heat resistant, anti corrosion, anti oxidation, UV resistance, high and low temperature resistance, can be used in harsh environments.2. Extension Cable Specification: 4mm², 12AWG, high voltage load capacity, rated voltage 1000V DC, rated current 30A, suitable for various solar power generation equipment.3. IP68 Waterproof: The waterproof ring in the male connector is designed to be waterproof and dustproof, and the waterproof level of the plug in box statu is IP68.4. Excellent Electrical Conductivity: Solar panel extension cable is made of tinned conductive copper material to ensure excellent electrical conductivity.5. Stable Self Locking Structure: The male and female connector of solar panel extension cable are equipped with self locking structure, easy plugging and unplugging, quick and easy installation and removal of plugs without any additional instruments.Specification:Item Type: 12AWG 4mm² Solar Panel Extension CableProduct Material: PPO, copper tin platingRated Current: 30ARated Voltage: 1000VDCContact Resistance: ≤ 0.2mΩWaterproof Grade: IP68 (plug box state)Flame Rating: UL94 VOSafety Level: IIPullout Force: ≥ 50NInsertion Force: ≤ 50NConnection System: Crimping connectionTemperature Range: - 40 ℃-+85 ℃Package List:2 x Solar Panel Extension Cable