I turned off the 5w individual leds and turned on the COB 3500K consuming 50 watts for 9 small plants in 1 liter pots since day 12. Phantom OG, Mendocino Purple Kush and 1 Channel are growing slower than the others.
@bobo420,Thanks bro, the Light seems to be very good and efficient, I'm going to use 2 of this lights and 2 Óptic One lights (One CXB3590 chip each one) for flowering a 4x4 tent.