switch with 1pcs remote controller, 120A switch with 2pcs remote controllers, 200A switch with 1pcs remote controller, 200A switch with 2pcs remote controllers (optional)Battery: according to your selection1pcs remote controller: 1 * CR2025 battery (included)2pcs remote controllers: 2 * CR2025 battery (included)Contacting parameters:Contacting load: 50A, 14VDCContacting resistance: 100m Max at 6VDC 1AElectrical lifespan: 100,000 operationsMechanical lifespan: 10,000,000 operationsMax switching current: 50AMaximum load voltage: 14VDCMaximum conversion power: 50ACharacteristic Parameters:Ambient temperature: -30℃ to 80℃Humidity: 40%-85%RhResistance value: 100mΩ Min at 500VDCWithstanding voltage between contacts: 2000VAC(for one minute/sec)Withstanding voltage between contacts and coils: 1500VAC(for one minute/sec)Suction time: 15msRelease time: 15msCoil Parameters:Rated voltage (VDC): 12 VCoil Resistance (Ω 2.4W): 30Suction Voltage (VDC): 8Release Voltage (VDC): 1.2Maximum overload voltage: 14Package size: 100 * 78 * 70mm / 3.94 * 3.07 * 2.76inPackage weight:1pcs remote controller: 360g / 12.70ounce2pcs remote controllers: 385g / 13.58ouncePacking List (1pcs remote controller):1 * Relay Switch1 * Remote Controller1 * Battery Pilehead1 * Battery Pilehead Sheath2 * Brass Battery Connectors2 * Copper Connection Pieces1 * Copper Lug2 * CableORPacking List (2pcs remote controllers):1 * Relay Switch2 * Remote Controllers1 * Battery Pilehead1 * Battery Pilehead Sheath2 * Brass Battery Connectors2 * Copper Connection Pieces1 * Copper Lug2 * Cable