Cavern Lighting

Cavern Lighting

• Carlsbad Cavern's modern lighting system includes more than 1000 bulbs and tubes, and 19 miles of concealed wires. The lights are designed to reveal the cavern's natural colors. 
• The natural condition of the cavern is total darkness. Without artificial lights you could not see your hand in front of your face. 
• In the rare event of a power failure, the lights would be powered by a 315 kilowatt diesel generator on the surface. There are also many battery-powered emergency lights in the cave.

It takes a wide array of incandescent, fluorescent, and mercury vapor lamps to  illuminate Carlsbad Cavern. Colored lights are not used. 

Submitted by @warrendgray