Need Help !

As this is the advanced section i figured your more likely to be able to help me. I have some lowriders that i came upon by chance, they have all feminized and have got quite big in my hydroponics kit with a 600w light. The biggest is 29 inches (and still growing) which is above average (according to grow sites) but no signs of buds yet. Will this excess hieght give me more bud or do i need to do something too them to make them bud? Also does the hieght suggest what strain it may be? thnks

This needs to go in the newbie section dude.

You need a light in the red spectrum of visible light, and you need to use that light 12 hours off, 12 hours on to make flower them.