She looks mostly sativa strain, flowering will likely go on for a few more weeks or a month. You will probably notice in a couple more weeks the buds will have swelled and more resin production. Definitely watch the ph with DWC though like OG said
If I could just put my 2 cents in. I'm on my first grow and have had to upgrade everything. I'm learning quick!!! I just bought a mars hydro. Like @MochaBud said. The sky is the limit $$$$ for lights. I feel like I got a good value from Mars hydro. That being said, I hope I'm not shopping for lights anytime soon. They have good drivers and the light are of good quality too. I had this vary same problem at my flip. I got my TS3000 Mars Hydro $620 Canadian. You won't need as big of a light, but Mar Hydro will tell you want you need to flower those girls correctly in your size grow. You will also love the light. No More Burple!!!!! There's my 2 cents. I don't know S*&$ but I weighed the pros and cons and my decision was Mars Hydro. BTW I haven't heard nobody complaining about Mars Hydro except people that never had them.
