： Lighting is an essential element in the creation of a great environment in which to live and work. It not only enhances the feeling of 'space' that a room produces, it also helps to create the perfect ambiance for that space. The choice of lighting used needs to co-ordinate with the interior colour scheme and furniture as well as the overall design of the room. Proper lighting can influence the atmosphere of a room not only in terms of brightness but mood as well. It has been scientifically proven that improving the lighting environment of a room can even have a positive effect on peoples wellbeing, increasing productivity and decreasing stress levels. Lighting can also be used to add drama to a room, highlighting certain features and altering the mood such as a dimmed light setting for relaxing or a bright light for a more upbeat atmosphere. On the practical side, it pays to plan in advance in order to get the most benefit from lighting. When buying light fittings and bulbs, ensure that it is compatible with each other in order to contain any potential energy wastage. As a general rule of thumb, the right lighting for any environment should not only be pleasant and efficient, but also save energy. In summary, proper lighting is essential in creating the perfect environment in which to live and work. It can affect the mood of the room, and can also have positive effects on wellbeing. And, as always, energy efficiency should be taken into consideration when deciding which lighting solutions to employ.