Trinity Candle Factory - French Vanilla - Effusion Lamp Oil - 8 oz Vanilla Lovers Dream! This aroma is a very nice warm buttery rich Vanilla. All time Best Seller. Catalytic / Effusion Oil is for your Lampe Berger, Redolere, La Tee Da, or Stone Wick Lamps. Truly a great product. This perfectly scented Catalytic / Effusion Lamp Oil will absolutely scent any room with your favorite aroma. Made IN USA 100% Satisfaction Guarantee