The Rayo™ is back! Crownplace Brands is proud to introduce a new lamp from the same Rayo™ brand that originated in the late 1800s. This small, but MIGHTY lamp produces more light than any other flat wick lamp available.Double the light of conventional wick lamps. So simple and easy to use!. French burner design, proven since the 1800s. Shatter-proof tank. Specifications:Size: 14" H x 6" W. Burn time: Approximately 10 hrs (not tested). Tank size: 16 oz. Chimney: Matador, 2 1/16" x 10 1/4". Wick: 2 9/16" W x 9" L. Burner style: #14, nickel. Suggested Fuels: Clear K-1 kerosene, KleanHeat, Aladdin lamp oil, regular lamp oil.Use Instructions:Allow the wick to soak up fuel for about 20 minutes before lighting.. Allow 36" clearance above the top of the chimney from combustibles..