Sensi star - the star of my tent

@Grow4Releaf,Thank you, it's a pleasure. Do you mean separate booster line with 660 nm diodes or do you mean red diodes on the upper lamp? If there are red diodes that illuminate the tent in red while the main light is not on, these are far red diodes that simulate dawn and sunset to accelerate the transition of the plant from the daytime to the night phase and vice versa. The first two weeks work all day, then until the end of the cycle for half an hour at the end and beginning of the day, 15 minutes of which falls on the period before / after switching on / off the main light.