|Osram's DSL module|
Osram claims that, compared with mercury-vapor-discharge lamps, the DSL cuts energy consumption of luminaires by at least 60 per cent. Upgrading is less than half the cost of a new LED installation.
Standardized LED-based replacement modules are available for many luminaire models with modern designs, but this is not the case for non-standard heritage luminaires.
|Street lighting application|
The second photo at right shows a luminaire containing the DSL module in Wipperfürth, North Rhine-Westphalia, Germany, which consumes up to 60% less energy than when fitted with the original mercury vapour discharge lamps.
As well as offering improved energy efficiency and durability, the modules, which are fitted with Osram’s Oslon SSL LEDs, provide high levels of color rendering. The DSL also enables more targeted control of light compared to classic lighting, for example by choosing the correct number of LEDs in order to reduce light spill in certain circumstances.
Osram also notes that the integration of modern control units with intelligent light management can ensure further energy savings. For example, the company’s AstroDIM system enables luminaires to be dimmed completely self-sufficiently without use of a corresponding control line. In this way, between midnight and the early morning hours, lighting can be adapted to lower volumes of traffic to achieve supplementary energy savings.