Amplify/Fade Light

You touch a light source (either magical or nonmagical) and increase it's brightness or cause it's light to instantly fade. While the spell is in effect, the radius around the bright light is doubled (or is now extinguished if you chose to fade the light), and dim light extends for the same distance beyond that area. The light source's duration is halved, however, so that a torch affected by Amplify/Fade Light would burn out in half an hour, or a hooded lantern would burn through it's fuel in 3 hours, or the Light cantrip would last half an hour. Adding new fuel to a light source while it's under the effect of the spell will end the spell and return it to its normal brightness.