Loop Circuit: ON-OFF Switching System: Resistant Enclosed Rocker Switch Overload Protection: 12V 20A DC; 24V 10A DC Operating Temperature: -25° to 80° Electrical Life: 10000 start-stop cycles at full load Color: Black Material: ABS Size: about 8.86 x 2.72 x 2.17 (inch) Two Hole Distance: 8.31x2.17 (inch) Description about the rocker switch: Made of environmentally friendly anti-retardant materials Unlike some rocker switches that mark 15 amps but support less than 12 amps, our switches are capable of handling an actual current of 20 amps on 12 volts Output circuit protection, overload protection and reverse polarity protection A waterproof housing will protect the switch from rain or coffee Immersion operation in water is not recommended Voltmeter Description: DC voltage measurement, with anti-reverse protection, anti-short circuit Used to monitor battery voltage and status Real-time detection of battery voltage, using battery used under normal working voltage Package Included: 1 x 6