Which lamps create more light and use less energy?
Each lamp has its own characteristics that include a more or less intense luminous flux, the direction of light distribution in space, the colour quality of light, and energy consumption. There is no ideal lamp, but rather a lamp should be considered in relation to the lighting composition and the desired visual effect. It is the lighting designer’s task to develop a technical lighting project in order to create the right light scenarios for various settings.
Some general indications can usually be given. Fluorescent lamps have good luminous efficiency (T5 HE up to 104 lm/W) and adequate flows for general lighting both indoors and outdoors. LEDs have high luminous efficiency and are very versatile. They are ideal for localised lighting (step lights, store window displays, display stands), for colour control (colour therapy and entertainment), and for functions that reduce high maintenance costs. Halogen lamps have low luminous efficiency but unparalleled colour quality. They are ideal for completing prestigious lighting scenarios. Discharge lamps have high luminous efficiency and high flows, and are ideal for lighting outdoors or large indoor spaces.