I did it at .12 cents but I'm actually .144 cents
.144x18x30= 77. That's one light plus fans, filters, cooling and dehumidifier. I'm happy I run cobs lol my bill is still over 700 a month with all my stuff going on.
.144x18x30= 77. That's one light plus fans, filters, cooling and dehumidifier. I'm happy I run cobs lol my bill is still over 700 a month with all my stuff going on.

