Amplify Light

You touch a non-magical light source and increase it's brightness. While in effect, the radius of the light, both bright and dim components, source is doubled. The fuel for the light source will be consumed twice as  fast, also. For instance a torch would burn out in a half hour instead of an hour. Adding fuel to a light source, like a hooded lantern, or lantern will end the spell and revert the light source back to normal parameters.