There almost has to be a tank of some size somewhere that this would be a good light for. Not knowing how much light it puts out and how much the light spreads out, I have no idea what that tank would be.
I'll try and get some pictures posted of the light in action.
Originally Posted by somewhatshocked
I neither say it was a rule, nor that plants couldn't be grown with lighting of another color temperature.
6500 = pretty nice, average, appealing to the eye. People recommend lighting in the 6500k range purely because it appears fairly natural to the naked eye in a tank.
When someone is new to lighting, most people in this hobby try to steer them toward something that looks a lot like natural daylight. As the OP said, their light looks orange/yellow.