Gas Light comes fully assembled. Mount and hook up to the fuel source, attach mantle. Gas Consumption is 2,000 btu's per hour. Produces approximately 11 hours of light per pound of propane with brightness comparable to a 70 watt bulb. No wicks to trim or fuel to spill.Operates with out bulbs or batteries. Economical to use - Costs only a few pennies per hour to operate. See my other auctions for different colors and accessories. Comes in 6 different colors. Pebble Gray, Rustic Walnut, Natural Almond, Hunter Green, Classic Chrome, High Polished Brass. The item "Humphrey Indoor Propane Gas Light Rustic Walnut 9RW uses preformed mantles USA" is in sale since Friday, October 30, 2015. This item is in the category "Sporting Goods\Outdoor Sports\Camping & Hiking\Flashlights, Lanterns & Lights\Lanterns". The seller is "mark14187" and is located in Millington, Michigan. This item can be shipped to United States, Canada.