cfl bulbs help for gardening?

ok i am going to garden indoors with cannabis and I am going to grow only 3 plants at a time in a very small compact area and i am going to get cfl lights but i don't know how many i will need I know i will need at least 1 6500k cfl light and a 2700k cfl light but do i really need more than 1 light...another question can i just use a regular lamp that can bend over the plants when they are growing or do i have to get something else
 
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