Osram Haloline light sources have a double ended R7s base. These small but bright light sources are dimmable, can be connected to 220 - 240 V and have an excellent colour rendering. The built-in UV filter prevents discolouring of objects by the emitted light. Use the filters on the right to select the right wattage and colour. Use your current light source as a guideline to choose the perfect light source for your application. Halogen lamps are currently being phased out since the no longer fulfil the European energy standards. Check out our energy efficient LED alternatives for R7s bulbs here.