The higher the Fabrication skill of a Sim the faster the Candle making will be: lvl 2 and lower = default speed, lvl 3-5 = 1,5x faster, lvl 6-8 = 2,25x faster and lvl 9 and higher = 4,5x faster. Sims who have the Fabrication skill lvl 5 and lower and the Handiness Skill lvl 6 and higher will also get the 1,5x faster bonus.
This is a mod to allow your household Sims and NPCs to take better care of their needs and hobby before getting uncomfortable from their motives going too low.