Thanks to their compact form, the light produced by low-voltage halogen lamps can be collimated very well, making them ideal for accent lighting.Further advantages offered by this light source - such as brilliant white light and excellent colour rendition - have meant that it has increasingly been used for ambient lighting over the past few years. ERCO constructed downlights and wallwashers for tungsten halogen lamps with 150W/24V for the first time ever for the Reichstag project. This meant that high-quality halogen light could be used to illuminate rooms of up to 4m in height and more.