Controller for electric bicycle price=$3.40U.S.(24V/36V) Controller for electric bicycle which has linker with start lock ,charger, voltage, speed $3.40U.S.(24V/36V) Controller for electric bicycle which has linker with start lock ,charger, voltage, speed $4.46U.S.(48V) Controller for electric motorcycle $6.63U.S. Brushless controller for electric bicycle $9.40U.S.(36V) Brushless controller for electric bicycle$10.24U.S.(24V) Brushless controller for electric motorcycle $21.70U.S. Controller for mini vehicle ,such as all type of three-wheeled vehicle ,etc $7.23U.S.-$14.50U.S. Input DC36v,Output DC12V,6A , Convertors for all type of electric bicycle & Motorcycles $3.00U.S./unit Input DC48v,Output DC12V,6A , Convertors for all type of electric motorcycle $3.20U.S./unit Input DC 48v, Output DC12V,30A ,Convertors for electric golf car ,three-wheeled car ,tourist car $24.00U.S./unit We also have all kinds of controller and converter with large power and all type of specification