CANDLE fusion power system

The CANDLE fusion power system is a generator located on the 2nd Level of the Hidden Valley bunker that supplies power to the Brotherhood of Steel inside of it.

During the quest Still in the Dark, you are asked to retrieve parts from Vault 22 to repair the generator.

Background
Information on the CANDLE can be found on Brotherhood of Steel terminals after doing the 'virus part' of the Still in the Dark quest.