Trinity Candle Factory Premium Scented Patchouli - Effusion Lamp Oil - 8 oz. Catalytic Lamp / Effusion Oil is for your Lampe Berger, Redolere, La Tee Da, or Stone Wick Lamps. Truly a great product. Trinity Candle Factory's catalytic lamp oil is great for any stone wick lamp assembly. This Patchouli fragrance smells just like a Sweet woody musky incense blend from the 60's. Some know this as Faroy Patchouli. really nice and strong! 100% Satisfaction Guarantee.