Yield Lab 4 Outlet 120v/240v Grow Light Relay ControllerTired of tripping the breaker on your wall outlets? If youve got lots of plants to grow but your house or growing space may not be able to handle all of the lights you need to grow them, the Yield Lab 4 Outlet Grow Light Relay Controller is what you need for safe, consistent running grow lights. This light relay controller will allow you to run 4x grow light ballasts at once: 400w, 600w, and 1000w dimmable and non dimmable; single mogul and dual ended