Gavita Pro 1000e DE: 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 components directly on the heat sinks instead of in a ballast bracket. The much cooler electronics result in a greater reliability and a longer life. The new design of the housing even increases that effect.