Excalibur

Hi dude, usually with LEDs you use both bloom and veg switch on together during bloom. With the mars reflector I used if you turn off the veg the internal cooling fans turn off. On that specific LED I used the veg switch on its own during veg then applied the bloom switch when ready for red spectrum. Look at all the other LED grows they all look purple right? That’s because it’s a mix of blue and red spectrums! Hope this reaches you in time✌️🏻