Trinity Candle Factory Premium Scented Christmas Cookies - 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 Christmas Cookie candle smells like oven baked, homemade cookies fresh out of the oven. 100% Satisfaction Guarantee.