My lights are 600w CFL. Can I keep them on 24/7?

I am currently growing 4 plants in an indoor tent using soil. It is my first grow. I have white widow auto flower. My lights are 600w CFL. Can I keep them on 24/7? Also what is the expected length of time from germination to harvest?

Type of light doesn’t dictate anything to do with time of photoperiod. So yes u can and should at the beginning but 18. N 6 after2 weeks to promote root growth …and sorry not firmiliar with autos but it’s about 3 to 4 Mo.

WW autos usually are at 30 - 50% amber trichomes ( most medical growers want this) at around 12 weeks for me. That’s when I harvest.