Seed Starter Trays With Kit - 80 Cells, 4 LED Grow Lights, Smart Timer

>>How does the smart timer work? 1、Red light means 3 h on, 21 h off; 2、Blue light means 6 h on, 18 h off; 3、both red and blue light on means 12 h on, 12 h off. Regardless of which mode is set, as long as the power is not disconnected, it will automatically light up every day thereafter.