Every Conceivable lamp including LED, CFL (Compact Fluorescent Lamps), Tungsten & Fluorescent, Discharge MBI HQI (Metal Halide), SON (High Pressure Sodium),SOX (Low Pressure Sodium), MBFU (Mercury Blended Fluorescent), And where they are available, Old style Tungsten ES BC SBC SES Caps

An English inventor named Humphrey Davy produced the world's first electric lamp by connecting voltaic piles (an early type of battery) to charcoal electrodes. Davy's 1802 invention was known as an electric arc lamp, named for the bright arc of light emitted between its two carbon rods.