Official Oppo 33W Super Vooc Flash Adapter
The OPPO 33W VOOC 4.0 AC adapter was originally shipped with the OPPO K5 to keep the phone charged. This USB Type-A based charger supports OPPO’s own brand of VOOC Flash Charge 4.0 charging scheme for up to 33 watts (5 volts @ 6 amps) output. For fastest charging, make sure to use the supplied USB Type-A to Type-C cable when connecting the charger to the phone.
The OPPO 33W VOOC 4.0 AC Adapter also supports USB Power Delivery (PD) over Type-C based charging for the OPPO K5 but only up to 10 watts (5 volts @ 2 amps) so that USB PD is purposely made much slower charging than VOOC.
oppo vooc flash 33w adapter