Dino-Lite PH-F1 SET is an external Fibre-optic LED lighting system to be used with Stereoscopes or Dino-Lite microscopes . The Photonic F1-set is composed of the F1 LED cold light source and the fiberoptic light guide with a double arm gooseneck. The sturdy metal housing of the F1 is ESD safe and has a control knob to adjust the brightness of the illumination. The fibreoptic light guide with the double arm gooseneck can be easily adjusted to provide the best angle of white LED illumination to your sample. By using the LED fibre optics the sample is not effected by any warmth at all.