Lamp

The wiki's entry for the Lamp is filed under that short name, but the gallery and the item's own page call it the Broken Lamp. It is a Large Item from The Stairwell, a plain damaged lamp with no use except to be sold at a Depot. According to the floor's page, a Broken Lamp is worth 3 Salvage Scrap, which Cobbler turns into 30 Gold at 10 per piece.

Where it sits in the value ladder

Among the common large items it is mid-range: above the 2-scrap Gasoline Tank, Large Screw and Pack of Gween Soda, equal to a crate of Bottles at 3, and below the Broken Computer at 4. Only the Tophat pays more, at 5.

Carrying it

Large items need both hands, so the player cannot switch to other hotbar items without dropping the lamp. Picking up a Stem while holding one moves the lamp into the hotbar, though re-equipping it makes it heavy again. The wiki says heavy items can also go into the Rift and into suitcases. A Shopping Cart lets the player carry a limited number of large items.

Achievement tie-in

The page lists Storage Wars among related achievements: A thousand is the best I can do, for making 1000+ Gold at a Depot in a single deposit.