u can see that info in the bulb but well if u don`t know about it with more kelvin degrees the spectrum is more white (daylight) and if u rest k degress the spectrum turn to red ( for flowering ) 3200ºk for down

but your bulbs are 4 save energy?

because my indoor work with save energy bulbs 6200ºk 45 watts for growiing and 2700ºk 45 watts for flowering