red and blue led lights at the same time???

ok as a first time grower, im currently growing a 4 plants, one is bigger than the other three. ive recently went to lowes to get a lighting system. i got the utilitech 3000k led light for flowering and 5000k for vegging. i have read multiple forums about this issue and im not sure whether to use the 6500k for vegging or not. there are so many mixed opinions. my grow box is 3fx2f completely covered with aluminum foil and has a vent with a fan attached to cycle air throughout. my question is ive seen pictures where they have one light that has both blue and red lights on it shining at the same time, can i use both lights at the same time for faster growth? and these lights are bulbs...not long led lights. they dont look like incandescent bulbs. also is it specific to use 2700k exactly? any help is appreciated.
 
 
 
for a preview of the two lights-
 
http://www.lowes.com/pd_179879-75774-LPAR30L/5K/LEDG5_4294801193%2B4294965690%2B4294850821__?productId=3744153&Ns=p_product_avg_rating|1&pl=1&currentURL=%3FNs%3Dp_product_avg_rating|1&facetInfo=Utilitech|Utilitech%20Pro
 
 
 
http://www.lowes.com/pd_408202-75774-LBR30DM/LED_0__?productId=4187797&Ntt=utilitech&pl=1&currentURL=%3FNtt%3Dutilitech&facetInfo=&state=R#reviews_tab
 
 
 
 
------all cyber followers, youre gay, none is this shit is real. we dont really grow cannabis, its hypothetical and a great time waster. leave me alone. thanks
 
 

 

but wont this confuse the plants when you actually do introduce the 6700K blue spectrum? im gonna experiment to come to my own conclusion. but still if people know that this is gonna work why is it not standard?

 

i have read hours and hours and hours on lighting. lol i couldn't find anything definite saying that it was viable except for one guy. lol