CL can be cast on any item type that can be equipped, or on yourself (in which case it functions as an improved Light spell).
The item description changes to include the Bright White Light property.
My first thoughts to your problem would be that a) you don't have one of the latest patches. or b) you're playing a module where rules for CL spells are altered.
Because they increase item value, as Robert mentioned, and because spells are cheap, they tend to unbalance economies when players, say, buy an item, cast CL on it and sell it back to the store again with a profit. That's a reason for some to decrease the spell's power.
Can you tell us what you're playing, and using which version at that?
[ 02-01-2006, 01:25 PM: Message edited by: Legolas ]
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