Gavita Pro Line E-Series 1000 DEGavita Pro Line E Series 1000 DE 1000w The e in e series stands for external control. These fixtures can be controlled centrally by a Gavita Master controller. This replaces the often cumbersome installation with contactors and clocks, and adds safety features such as automatic dimming of your lights at high temperatures and even a safety shutdown. We improved the electronics and changed the way the ballast is built, by mounting the PCB and warm