Electric lights, free images. Images explicitly placed in the public domain. You can use all images from this gallery for whatever you want, use it freely for personal and commercial use.
dark blue, light bulb, transparent, hanging, reflection, electricity, wires, glass, science, illuminated
yellowish, light bulb, yellow, wires, reflection, transparent, glass, electricity, illuminated, light
reflector, diode, red light, spotlight, light, technology, illuminated, electricity, indoors, equipment