Trinity Candle Factory Premium Scented Lemongrass - 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 Lemongrass fragrance is the invigorating aromatherapy fragrance of wild lemon grass plant. 100% Satisfaction Guarantee.