The lamp is equipped with an articulated arm, which ensures perfect stability and rotation of the lamp.  The optics are designed to provide deep and well focused illumination. The diameter of the light field is 17 cm @ 0.5 m. The light intensity can be adjusted in six different levels through the membrane keyboard. The C button allows you to turn on the courtesy light (ambient light).   PRIMA-FIX is also the first observation lamp with the possibility to choose an ambient light in addition to the traditional concentrated light. This function can be activated at the touch of a button (C). The transformer, integrated in the plug to give the arm greater lightness, is supplied with interchangeable plugs (UK, US, EU).