The Undertown has lights in the form of LED Keychain Torches blutacked to the ceilings.  These provide about 12 continuous hours of illumination.  The batteries are replaceable but it may be cheaper to just replace the whole torch when as required. I got them from Amazon for around $0.50 each including shipping in lots of 20.

The lights make a big difference even when the room is fully lit.  Interior details can be seen through the windows in rooms that were otherwise in full shadow.

Whiskey Jacks gets great effects in the main saloon and through the slits of the armored windows windows and doors of the back office.
 Following are a lot of pictures of the various buildings of the Undertown where some buildings are illuminated and others in the photo are not.  The difference really jumps out. There some pictures of the fully illuminated table in various ambient light states.  At the end are a couple of shots of the A-Z Mart (weathered) which is pretty eerie looking.

 All of these buildings, most of the scatter terrain, and the game mat are from Antenocitis Workshop.
Sake shop upstairs fashion outlet downstairs.

 Flats

Lit and unlit buildings.

 The Neo-Tiki Hotel.

Neo Tiki Hotel office and guest services.
 The Data Trust.

 The computer screens really pop in the Data Trust. Full table regular room light.






 Full table at half room light.

 Full table in the dark.


 A-Z Mart regular light.
A-Z Mart in the "Vamps and Zombies and Weres... oh my!" dark