Floweing Light question !!! please

The lights are 6500 k bulbs and 3000 k bulbs ... mixed ... there flourecent ..

and there 54 watt each .. Could i flower the plants with these ?

or do i need HPS ?

You can flower with those, how many do you have and how many plants?
The ideal spectrum for flowering is 2700k, but 3000k should be close enough. 6500k is used for veg, but a few can be beneficial for flowering, say 2 or 3 to every 3000k bulb, and the opposite for veg.

keep'em close as possible. cfls don't penetrate as good as hps

Hairy Bob said:

You can flower with those, how many do you have and how many plants?
The ideal spectrum for flowering is 2700k, but 3000k should be close enough. 6500k is used for veg, but a few can be beneficial for flowering, say 2 or 3 to every 3000k bulb, and the opposite for veg.

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I talked to this guy from the live chat and told me If I use HOs t5s I will only get and 8th of buds. btw I have 2 3000k and 2 6500k. For flowering if I get 4 3000k would that be good for the plant to get good buds or do I need HPSs ?

I really dont get who to believe here ...... some ppl say HOs t5 wont work for flowering and some say it does ........ ???

well i've used the sunleaves 8 lamp t5 it was pricy and i was skeptical but it worked just as good as a 400w mh but it wass the sam watts so it wasn't worth it .and a friend of mine tried to flower some stuff it turned out horible but that could of been his falt

You asked if it would work, and it will, in the sense that it will make the plants flower. The results won't necessarily be as good as a HPS would produce, but that would depend on the type of bulbs you are using. There are plenty of plant-specific fluoros that put out more PAR watts (light the plant can photosynthesise with) than HPS, but as was pointed out, the throw, or 'penetration' isn't as good, mostly because the light is being produced by multiple smaller sources, rather than a single powerful one.
This basically means that to grow large plants and get lots of bud, you either need to surround the plants with cfls/fluoros or get HPS.
How big a space is it and how many plants? I would have said 4x54w should do for a 2x2 or so area, but there won't be a great deal of growth below the canopy if the light sources are all above the plants.