Quote Originally Posted by headshake
he said 150W actual wattage. the K (short for 1000) behind the 2700 (2700K) indicates the color spectrum. 2700K is actually in the red spectrum, 6500K is in the blue spectrum. 2700K is better for flower, 6500K for veg.

using watts is not the best idea. watts are merely the consumption of power. this doesn't take into account the efficiency of the bulb.


-shake
The K is actually for Kelvin. It measures the temperature of the light emited from the bulb.. And, higher kelvin values mean less lumen output from the bulb.
WhiteTux Reviewed by WhiteTux on . CFL question So im getting 2 150 watt cfl's actual wattage and one in 2700k and the other is 6500k can i use both of these at the same time or do i have to use them one at a time like 6500k for veg and 2700k for flower hoping i can use them both together obviously for the extra lumens. sorry for sounding like a total noob Rating: 5