The Vuduri do not use traditional incandescent bulbs to illuminate their indoor structures. Most of their buildings are built out of aerogel. Aerogel is a synthetic porous ultralight material derived from a gel, in which the liquid component of the gel has been replaced with a gas. The result is a solid with extremely low density and thermal conductivity. The Vuduri has mixed in a compound which has capacitive properties. When a small amount of electricity is applied, the capacitor glows with a gentle light called electroluminescence. In our world, these are sometimes known as Light Emitting Capacitors or LECs.
From e-lite.com:
Benefits of Electroluminescent (EL) light:
- No filament to break – never fails to light
- Flexible and bright
- Cool to touch and light-weight
- Highly visible in darkness, smoke, fog etc. vs. point-sources of light
- Paper thin (as thin as credit card)
- Not affected by vibration (Vibration Resistant)
- Shock Proof
- Does not burn out suddenly
- Continues to operate, even if punctured
- Does not impair night vision
- Can be seen at greater distances
- No hazardous materials
- Effective and Maintenance Free
The Vuduri are all about efficiency and low maintenance. They have perfected the art of electroluminescence and have integrated it into all of their structures and vehicles. Since they have essentially unlimited, free energy from PPT generators, they exploit it fully.