L-8-HI models are high intensity (5W Halogen). See L-8 for low intensity models. (L-8 series are not available in LED series). Littlite lampsets have a twelve-inch cord set terminating in a 2.1mm socket. GXF-10 power supply has a four-foot cable terminating in a 2.1mm plug. Available with six, twelve or eighteen-inch gooseneck.