HI soti dicussion

i try to use command for on/off Power saving command , with this below 

Enable power saving 
writesecuresetting -glo low_power 1
apply featurecontrol

disable  power saving 
writesecuresetting -glo low_power 0
apply featurecontrol

but i dont know command active or not because of  power saving icon is not change, i think mat be not work with this command,

it have other command or not, Or script working but icon not change?