free CFL light bulb vector illustration set. This energy saving / low energy compact fluorescent lamp clip art is perfect for environmental designs related to global warming / green ideas / energy saving, etc 燈泡 概念 創造力 節能燈: 節能緊湊型螢光燈
free CFL light bulb vector illustration set. This energy saving / low energy compact fluorescent lamp clip art is perfect for environmental designs related to global warming / green ideas / energy saving, etc 燈泡 概念 創造力 CFL: Energy Saving Compact Fluorescent Lamp