The Gavita Master Controller EL1 Gen 2 Light Controller with Power Cord is a black light controller designed for use with grow lights. This controller is equipped with features such as an auto-dim function and emergency shut-down, making it ideal for controlling your grow lights with precision. With a power consumption of 50W and a compact design weighing only 1.75 lb, this Gavita controller is a reliable and efficient accessory for your hydroponics setup.