ITEM NAME:M16 4Pins 400V Screw Type Electrical Aviation Plug Socket Connector T1B2 M16 4Pins 400V Screw Type Electrical Aviation Plug Socket Connector T1B2 Professional HS4-1 M16 air plug socket. Made of soild material, more durable. One set which includes one male and one female Connector. Voltage: 400V Current: 3A. Environment Temperature: -50~+70 Celsius Relative Humidity: The temperature is + 40 Celsius could reach 98%. Insulation Resistanceï ¼Å¡Normal.Professional HS4-1 M16 air plug socket. One set which includes one male and one female Connector. Type: 4 pin. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.