Ключевые слова: abstract, background, beam, black, bright, bulb, concept, copyspace, dark, darkness, discovery, electric, emergency, energy, equipment, flash, flashlight, flashlight night, halogen, handheld, highlight, hope, illuminate, illumination, isolated, lamp, lantern, light, light beam, lighting, lighting equipment, metal, night, power, projection, ray, safety, search, searching, searchlight, secret, secure, security, shadow, shine, space, spot, spotlight, tool, torch,