bulb on black background

alight ampere background beam black bright bulb burn burning close closeup coil concept conceptual conceptually contrast dark darkness dusty edison electrical electricity element emitter energy equipment filament glass glow glowing heat heating idea illuminate illumination incandescent innovation inspiration invention isolated lamp light limpid lit old outline pellucid piriform pyriform radiate ray retro round shape shine shiny single thin thomas transparent tungsten unique vacuum vintage volt voltage warm waste wasteful watts wire yellow