FL4 Series grading lamps are designed especially for diamond, colored stone grading, and jewellery examination. FL Series illumination has been upgraded with best fluorescence tubes for color grading. Color Rendering Index is 96 with Philips Graphica Fluorescent lightbulbs FL4 Series lamps combine the most used illumination for diamond and other colored stones. As Chromas Technologies, we use the most advanced lightbulbs to achieve the best grading environment for diamond, colored stones, and jewelry professionals. There are 4 light tubes in FL4 lamps: 2 x White Illumination 6500K CRI 96 1 x 4000K Daylight Illumination 1 x UV 365 nm tube Different types of lightbulbs available Gas Spring Arm Positioning For a grading lamp besides illumination, the manipulation of the lamp provides a comfor
