Features 1. Universal voltage, fit for 12-84V electric bike or scooters, can identify voltage automatically, timely indicating. (12V, 24V, 36V, 48V, 60V, 72V electric vehicles can be used directly, part of the 84V electric vehicles can also be used.) 2. By turning the real-time voltage value can accurately determine the amount of the remaining amount of electricity. 3. To avoid traveling on the way without electricity and accurate judgment of the lithium battery is damaged. 4. By turning the real-time voltage value can accurately determine the judge the quality of lithium battery. 5. Automatic to identification electric vehicles' voltage under 100V, universal used and real-time display. Specifications Material Aluminium Alloy + Rubber Color Red Wire Length approx. 1.8m / 70.9" Type 3 gears switch, high speed, middle speed, low speed (Adjust the speed of electric car, need controller to support) Compatible With Suitable for 12V-99V Electric Bicycle Fitment: Fit for 22.2mm diameter handle Working Voltage Throttle DC0.8-4.2V, battery level indicator, 12-84V automatically identify. Application for any battery such as lithium battery , lead-acid battery Compatible With Universal throttle for electric bike, scooter, tricycle, and other electric vehicle Package Included 2 x Handlebars (1pc right handle, 1pc left handle grip), 1 x 1.8m Line 7 Wires Yellow for power positive, usually connect with battery power + 24V 36V 48V Red for throttle positive + 5V Green for twist throttle signal wire Black for throttle negative white blue and brown for gears 3, please make sure your controller has 3 gears wire White for high speed Blue for middle speed shared line Brown for low speed Note 1. Please notice that if your electric vehicle's controller doesn't support speed regulation, then this speed control switch has no effect. 2. When installing the non professionals, please pay attention to the line order, can not be connected to the wrong line, otherwise it is very easy to cause the burning of Holzer and LED tube. 3. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 4. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please in kind prevail. Note 1. Please notice that if your electric vehicle's controller doesn't support speed regulation, then this speed control switch has no effect. 2. When installing the non professionals, please pay attention to the line order, can not be connected to the wrong line, otherwise it is very easy to cause the burning of Holzer and LED tube. 3. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 4. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please in kind prevail. Common sense for battery voltage Different battery materials, new/old condition of battery, and different controller data make battery voltage reflects differently. Please check your battery voltage data according to your battery. The maximum voltage indicates full charge. The low voltage indicates that the battery is exhausted. 12V electric bike maximum voltage 12V, min voltage 9V 24V electric bike maximum voltage 29V, min voltage 21V 36V electric bike maximum voltage 42V, min voltage 29V 48V electric bike maximum voltage 54V, min voltage 39V 60V electric bike maximum voltage 72V, min voltage 49V 72V electric bike maximum voltage 84V, min voltage 60V Common sense for battery voltage Different battery materials, new/old condition of battery, and different controller data make battery voltage reflects differently. Please check your battery voltage data according to your battery. The maximum voltage indicates full charge. The low voltage indicates that the battery is exhausted. 12V electric bike maximum voltage 12V, min voltage 9V 24V electric bike maximum voltage 29V, min voltage 21V 36V electric bike maximum voltage 42V, min voltage 29V 48V electric bike maximum voltage 54V, min voltage 39V 60V electric bike maximum voltage 72V, min voltage 49V 72V electric bike maximum voltage 84V, min voltage 60V Motor Extension Cable Bike Hub Removal Tool Bike Brake Grips Bearing Headset Bike Pedal Assist Sensor Seatpost Clamp Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.4 out of 5 stars 108 4.4 out of 5 stars 139 4.4 out of 5 stars 96 4.3 out of 5 stars 105 4.2 out of 5 stars 29 3.4 out of 5 stars 17 Price $11.02$11.02 $16.32$16.32 $6.29$6.29 $9.45$9.45 $15.06$15.06 $12.04$12.04 Material Blend Iron Silicone Steel ABS Aluminum Alloy