an image from the US government EPA "Sunwise" program. I converted it from PDF format. the source link is here - http://www.epa.gov/sunwise/doc/poster.pdf
燈的輪廓
bulb、cartoon、coloring book、epa、epa sunwise、Everyday Objects、lamp、light、lightsource、line art、outline、reading lamp
燈泡、動畫片、填色本、EPA、epa sunwise、日常物品、燈、光、lightsource、線條藝術、大綱、閱讀燈
資料來源：openclipart ( https://openclipart.org/ )