1、[Crimping Terminal Connection] The extension cable adopts the crimp connection terminal, with good abrasion resistance and excellent softness. 2、[4 to 1 Solar Cable Connectors] This 4 way connector kit could be used for connecting upto four solar panels in parallel. 3、[Waterproof Solar Extension Cable] Solar cable connector adapter is perfect to sealing out water and dust to prevent corrosion. 4、[Durable] The extension cable connectors are stable and safe with the built‑in lock which is long durable in outdoor environment. 5、[Wide Application] The connector 4 branch Y type solar cable, suitable for solar power station, PV connector and PV junction box. 1 x Positive Connector1 x Negative Connector Item Type: Solar Panel ConnectorMaterial: Plastic + BrassColor: As shown in the pictureWeight: Approx. 347g / 12.2ozWorking Current: 20A (4mm²), 30A (6mm²)Withstand Voltage: DC1000VContact Resistance: <= 0.5mΩInsulation Resistance: > 500MΩApplicable Single Core Cable Section: 1.5mm²-6mm²Cable Outer Diameter Range: Φ5-7mm / 0.20- 0.28inAmbient Temperature: -40 ℃ - + 105 ℃Protection Level: IP67Security Level: ⅡInsertion Force: ≤50Nwithdrawal Force: ≥50NFlame Retardant Rating: UL94-VOTerminal Connection Method: CrimpingApplication: Solar Panel Connection, etc.