AsNoriuanswered grow question 2 years ago some fast strains are still photo-dependent plants, aka will need 12/12 light schedule ... but in such case you loose size and speed of autos ...
Rethink can those seeds go all together ...
i grew up to 25 plants having from 720 to 1400w , so light should be no problem if its real 600w not the name of model, more worry about space, pot size, how you will access them to water and to know when to water .... loads of planing while you wait for seeds .. ;)