Trinity Candle Factory Premium Scented French Vanilla - 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 French Vanilla is special blend of smooth Vanilla and fresh warm cinnamon. Great for the Holidays! 100% Satisfaction Guarantee.