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In the same era as whale oil and burning fluid lamps, lard or lard oil lamps were another option. The difficulties with lard and lard oil lamps was that lard, in low temperatures, comes in a solid state. It takes a higher amount of heat to transform it into a liquid state. Generally a good option for higher temperature areas or climates, the lard lamp provided good lighting and were inexpensive. Lard and lard oil lamps have characteristic wick tubes, usually copper and extend a short distance above the font. They have a projecting well that travels down into the oil and acts as a heat conductor. Wicks are wide and flat or annular argand type. The Rushlight Club. "Early Lighting: A Pictorial Guide." USA: 1988.

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