Information Type: Electric car speed control Model: S series (5V-99V automatically recognizes electric vehicle voltage) Efficiency: 98% Working voltage: turn DC0.8V-4.2V Power display: voltage digital display is wide voltage, 1-100v, regardless of lead-acid battery, lithium battery, regardless of voltage, can be automatically identified (12V, 24V, 36V, 48V, 60V, 72V electric vehicles can be directly Use, part of the 84V electric car is also available.) The light display must leave a message v, not a wide voltage Specifications: electric vehicle universal accessories Voltage display turn advantage: 1, regardless of lead-acid batteries, lithium batteries, water batteries, dry batteries. 2, regardless of the various types of electric vehicles (12V to 99V universal), can be automatically identified, real-time display. 3, eliminate the analog power display (several small lights), real-time digital voltage display, intuitive, convenient, can accurately determine the remaining power, mileage. 4, through the voltage figures to determine the electric vehicle failure, with half the effort. Package include:1pc