Corrected entry: When Detective Castelbeck and his partner are searching the warehouse with the UV lights, they find the list of the cars written with the UV reactive ink. When Castelbeck raises his arm the power cable of the UV light can be seen going into his jacket sleeve to a power supply somewhere inside it.
Bruce Minnick
31st Jan 2005
Correction: The cord can be seen in a few other shots during this scene. It appears that they are using standard light fixtures, with UV bulbs, the same fixtures that you can get at any hardware store, ones that require them to be plugged in. Just because they do not show them plugging them in, doesn't mean they are battery operated.
Bruce Minnick