Lighting refers to artificial illumination with candles, oil lamps, incandescent light bulbs, electric lamps and other sources of light that emit light in the form of electromagnetic radiation. This is an important technology for architecture when it helps create certain ambiances or draw attention to a work of art. Lighting also affects the functioning of the human body. In a general sense, the source and color of the light greatly influence our ability to focus. Too much lighting triggers alertness and too little light contributes to drowsiness. Proper lighting can also help prevent accidents in the workplace/home, it can help improve mood and sleep patterns, and keep our circadian rhythms in sync. Good lighting design considers a range of factors, such as: the desired level of brightness, the configuration of the luminaires used, and the direction of the beams. Colors and shades, types and intensity of lighting, and the level of artificial lighting all play an important role in creating specific environments or enhancing specific characteristics. Lighting has also become a great way for interior designers to express themselves. Over the years, light fixtures, as well as lighting techniques, have become increasingly fashionable. Nowadays homeowners are provided with a wide range of lighting to choose from. From downlights to pendant lights, the possibilities are endless. Lighting is a multifaceted and important technology to any form of design. In todays world, lighting has become an essential part of interior design, and it is used to create the desired ambiance, while providing necessary illumination. From professional commercial to residential, lighting plays a key role in all aspects of the design process.