A Simple Candle is a church candle: the first Candelabra I is built from one and 3 Bronze Details. At the Formulation Bench, 2 Beeswax and a Flax Thread make one, with an 80% chance of a second from the Alchemist perk. The recipe, the Candelabra and the bench itself all come with Church Lighting I (5 red, 10 green, 5 blue).