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 mod brings electrodutions back to TS2 style, they are now largely dependent on your Sims handiness skill level as well as on their current mood (focused is helpful, uncomfortable not so much).