I need extra lighting 250 hps son agro.

Hello im running a grow this time , i have one white widow 30 days flowering with hps 250 son agro ,but i see that some buds needs litlle more lighting , can i put even a bulb cfl for extra light and what do you suggest watt, spectrum e.t.c ? can i have some problem with it

Thank you.

You can absolutely add cfls for additional light, id recommend a few 42w 2700k cfls (id probly go 3 55w and 3 42w if it was my grow)