Lighting is an essential element of interior design. It affects everything from the look and feel of a room to the mood of the people who inhabit it. For interior designers, its one of the most important elements to consider when creating a space. Lighting can be used in a variety of ways to add intrigue and beauty to a room. Strategic placement of overhead lighting can be used for general illumination while lamps can be used to create an inviting atmosphere. Task lighting – such as desk lamps and under-cabinet lighting – is also used to provide task-specific lighting. Natural light is also an important consideration for interior designers. Natural light provides beautiful, even illumination and can help create an inviting, relaxing atmosphere. Placement of furniture and other elements in a room can also be designed to maximise the use of natural sunlight. In addition to creating the desired look and feel in a room, lighting can also be used to create a sense of safety and security. Exterior lighting is often used to light walkways and deter crime. Lighting can also be used to highlight prized possessions or architectural features. The light bulb has undergone a dramatic transformation in recent years – with the emergence of LED light bulbs offering energy efficiency and cost savings. They also come in a variety of color temperatures, allowing interior designers to use a variety of colors to create different moods in a room. In conclusion, lighting is an essential element of interior design – impacting everything from the look and feel of a room to the mood of its inhabitants. Interior designers must consider the many different aspects of lighting when creating a space in order to ensure that it meets the desired goals.