#1 21672881 03 Dec 2014 01:08 Nur Syahirah Md Rafi Nur Syahirah Md Rafi Anonymous Post #1 21672881 03 Dec 2014 01:08 hi. I'm a newbie here. i want to know how to decrease the frequency of this inverter. the frequency is quite high. i hope that someone can help me.