These lamps are not just for decoration; they are fully boat-worthy, being made from solid, heavy gauge brass which is then polished - what's more, they create an absolutely wonderful glow. Please bear in mind that in terms of light output, they can't compete with incandescent mantles or filaments. They also generate considerable heat, so you will need some form of shade, and at least 6" clearance. Finally, to reduce soot and smell, you should always use actual lamp oil, not plain paraffin. Burning time 38 hours approx. Overall dimensions (approx) 310 mm high, width 200 mm.