Irwin 1801100 Lighted Box Level - 24"Highlights: Length size: 24" Box beam level with the added benefit of an electronic module that has a back lit LCD wide screen display, which makes working with angles and slopes easy and accurate Vials can be lit with LED lights at the push of a button Provides better readability in low light conditions such as closets, basements or when working at dusk Retractable end caps Continuous edge Lighted