Trinity Candle Factory Premium Scented Guardian Angel Candle - 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 Guardian Angel fragrance is a magnificent smooth blend of powder fresh yet softly sweetened. with a vanilla undertone. 100% Satisfaction Guarantee.