Light Source

I created a small plane and I would like to use it as a light source. How would I go about doing that? Using 2.53.
Thank you.

Have you tried to assign a material with some Emit value assigned to it? And than, you need to activate Radiosity render as well. May be, I use 2.49.

Radiosity dosent excist in blender 2.5x But yes you can make a material to that mesh with an emite value and then simply using lams like the light. Dont know how to do it any other way