The box says that yes it is 1000k, but 1000k is our visual spectrum, not the types used for plants, which is usually measured with PAR. Otherwise, the spectrum on the side of the box is more strongly blue, with some (albeit somewhat minimal) red waves. So I think it should work well with keeping most plants alive. I will give more info once I get some more plants into the enclosure. Also, I have not gotten a Cham yet, but am slowly setting up and working on it. I will post. More info as it comes along I guess.
Both PAR and Color temperature are ways of measuring light.
A "PAR" reading is a reading that adds up the photosynthetic values of light. In other words, a PAR reading only counts the wavelengths used in photosynthesis (ie it does not count greens, etc).
the "1000K" lighting scale is based on the "visual spectrum" yes, but lower color means more reds and higher K ratings means more blues. unfortunately, as you mentioned, this number is only a representation of the sum of the values and does not actually tell us if the desired wavelengths are in the light (for that we must look at the spectral graph of the light). however, as a "strong approximation" 6500K is good enough for almost all instances here.
if you see the spectral graph, make sure there are good reds and blues; that is what really matters....PAR, color temperature, etc are all various measures of this, but the core spectral distribution is what really matters
AQUATIC plants need more blue wavelenghts because that is whaat penetrates deeper into the water (and so they don't get as much red in nature and have evolved away from using reds). ABOVE-water plants WILL want much more reds, especially for "coloring up"
You
can use a blue heavy light (10000K) and will have drab colored, but well-growing (vegetation will grow) plants.
Using a 1000K light means it is very red and will not lead to good plant growth at all (i'm guessing you meant 10000K as I have not seen anyone make a 1000K light)
if you need details feel free to PM me
if you are expecting flowers or any kind of coloration from your plants, you need the red wavelengths. this is due to chlorophyll a and b production (wikipedia has a good basic article on this)