Control units for regulating start-up electrical motors; Electronic apparatus and instruments for controlling, adjusting and testing of drives and motors; Electronic controls for motors; Electronic controls for gasoline engines for land vehicles; Electronic motor switches for switching off motors; Electronic power supplies for driving electric motors; Electronic motor vehicle ignition tuning kits comprised of an electronic control unit that monitors engine performances and delivers re-calculated sensor values to the original engine control unit to increase engine performance; Engine cut-out devices; Speed limiters for limiting vehicle engine speed, namely, aftermarket, add-on devices for vehicles in order to limit the maximum speed output of an automobile; Vehicle engine parts, namely, thermostats; Bicycle accessories, namely, electronic sound making devices for use on bicycles; Cut-out switches; Electric current switches; Electric light switches; Electric switches; High-frequency switching power supplies; Light switches; Power adapters; Batteries and battery chargers; Handheld personal computers; Interfaces and peripheral devices for computers