First， the voltage selection

Car 1 battery voltage selection 12V; 2 battery voltage selection 24V

General family cars are 12V， truck trucks are generally 24V， please choose a good type!

 

Second， the size of choice:

6 inch (for QQ. Alto and other mini small car) net diameter 16cm

8 inch (for van， pickup， standard five， hatchback / sedan) net diameter 22cm

10 inch (for trucks， containers， seven MPV， etc.) grid diameter 27cm