This paper deals with the problem of current sharing in parallel strings of LEDs. As there is no guarantee that the string voltages are the same. some strategy for equalizing their currents must be used. This ensures that the luminous fluxes emitted by the strings are very similar. https://www.hindigyanvishv.com/deal-time-Universal-Steering-Wheel-Control-Input-Interface-APUNISW2-hot-grab/