light question

[Tindomul1of9]

Im not sure, but I think K stands for Kelvin(how that relates to light, I have no idea, I'm probably dead wrong).
I find it hard to believe that any light source has a 98% efficiency rate, as that would mean almost no energy is lost to heat. Correct me on that one orchidman!
I was calculating the 4800 becuase my lights are only a few weeks old. Thanks for the info on the Catts though. I wonder if I can grow a Sophornitis cernua under those lights??????

[Diane]

The 'k' relates to the color spectrum of the light. High value, such as 6500 is good for growth, lower value, like 2700 is good for blooming. It is the range within the light color spectrum that that particular bulb produces.

[p 1]

Im not sure, but I think K stands for Kelvin(how that relates to light, I have no idea, I'm probably dead wrong).
I find it hard to believe that any light source has a 98% efficiency rate, as that would mean almost no energy is lost to heat. Correct me on that one orchidman!
I was calculating the 4800 becuase my lights are only a few weeks old. Thanks for the info on the Catts though. I wonder if I can grow a Sophornitis cernua under those lights??????

if you have 10,000 lumens, 2 feet away from the catts, that should be 5,000 LCs. if the light is closer, more FCs, if its farther, less. you shouldn't have any problem growing catts with that.

i could be way off, though, feel free to correct me, anyone.

diane: i see, thanks.