Osram Halopin light sources are small but bright light bulbs with a R7s or Fa4 base. The lights are known for their small dimensions, high colour rendering and built-in UV block that prevents discolouring of objects by the emitted light. Check your fixture for the right fitting and dimensions before purchasing your new Osram Halopint halogen light. Halogen lights are currently being phased out as the no longer fulfil the European energy standards. However, there is a wide variety of energy efficient LED R7s bulbs, that save energy and last longer!