The ELF controllers are new to the family. Not only do they offer everything the Gen 2 controller has to offer in control and safety, but they also provide integrated, intelligent fan control, based on a PID algorithm: 0-10 V EC fan control, intelligent PID fan control, non-volatile memory, event logging, independent sunrise and sunset settings, and independent light cycles on the EL2. With the 0-10 V EC fan control, there is no longer the need to separate high-power speeds controllers to regulate your extraction and intake fans: this little intelligent controller can control them all, more precise, quieter and with better performance. Want to move 1 cf/s or 1000 cf/s, this controller can handle any size EC fan. The wiring system is plug-and-play with all the cables you need already included with each e-series fixture. Whether you control two fixtures or 1000, the Master Controller will do the job. Standard, each output channel can control 40 fixtures (Single Bus e-series) up to 500 fixtures (Repeater Bus e-series), without the addition of booster modules. The EL2F has even more features. On top of the double output ports, you can connect our ECM units which allow you to switch auxiliary equipment, such as CO2 units and heaters, during the lights-on and light-off periods.