Why would we need a light source during the day? :P lol<br/><br/>As for hiding a light... recall that stealth requires full concealment (or cover), so you wouldn't be able to hide a light anyway if you were in full view of the person you were hiding from. Beyond that, I'd probably give a -20 to the stealth check if trying to hide the reflections of a light source (since they'd be really noticeable).