CyberPower Backup Battery for your Master Controller.
You plug this Battery + Power Strip into the wall and plug your controller into this the right side of the unit which is the battery side. This guarantees that if your power flickers or goes out your controller will not reset. This adds massive long term stability and reliability to your grow & controller. If you have power flickers or power outages in your area and want to use the optic master controller this is a required item and will give you peace of mind with your Optic LED Grow Lights and Controller system.
Or you Can upgrade to the 850VA Unit with a LCD Screen That displays battery and power status. If you do place this unit inside of your grow space you will want to cover the screen with something black to block light from the LCD display.
