A Lumen is a unit of measurement which refers to the amount or quantity of light emitted from a bulb.
Kelvin is a unit of measurement for the color temperature. It may very well refer to the light frequency, not really sure. Think of a rainbow, the bluish/purplish side measures higher on the kelvin scale in the 10,000 kelvin to 12,000 kelvin, while the yellow side of the rainbow has a lower kelvin number say around 2000 kelvin.
Lights with a higher kelvin number aren't what you want, unless you're after that blueish and even purplish light.
If I remember correctly, a 55w halogen bulb burns at 3500k, and emits around 1100 lumens.
HID conversion kits (most all are 35w) are available in all sorts of color temperatures, but right around 4000 to 4200k from what I understand gives off the most lumens
I got the 6000k HID conversion setup and they give off 3200 lumens each. If and when these bulbs ever burn out, I'll get the 4200k bulbs.
No, really, the mustache means I love you.
dirty_sanchez screwed with this post 01-27-2007 at 08:05 PM