In Pokémon Conquest, Litwick (after you have found a wild one in the Valora Kingdom and have successfully recruited it) you will be able to evolve it once its attack stat is at 94 and then it will start to attempt the process of evolving to Lampent and then you will need to equip a Dusk Stone to it in order to evolve it to Chandelure.
lampent evolve litwick
Level it to 41 and it will evolve
Litwick evolves into Lampent at level 41.
Litwick evolves at level 41 into Lampent.
Lampent. You can make Litwick evolve to it at level 41.
Uhjj
It's simple. Litwick evolve in the lamp Pokemon Lampent in level 41, and Lampent evolves with a dusk stone into Chandelure.
Level 41, to Lampent. To evolve it after that, you need a dusk stone
Litwick evolves into Lampent at Lv. 41, then evolves into Chandelure with a Dusk Stone.
You have to evolve it from Litwick, caught at Celestial Tower.
Litwick evolves at Lv41.
to lampent at level 41 then to chandelure with a dusk stone