Our 12' hanging lantern cord in black has an on/off switch and a standard polarized plug for US and Canadian electric systems. The roller switch is located half way along the cord, so it is easy to reach to turn the fixture on or off. Our lantern cords feature a standard base socket that fits regular household light bulbs. No special sized bulbs required. We do recommend a CFL (compact fluorescent light) bulb because it doesn't get hot like old-style incandescent bulbs, and it uses 2/3 less energy. Our light cords are rated for bulbs to 40 watts.