XK-300C LED X-Ray Film Viewer Box 1.Unique cooling system; 2.Ultra-low noise; 3.LED source; XK-300C LED X-Ray Film Viewer BoxSpecifications:1 ... .Weight: 1.9kgFeatures:1. Adopt LED, with high brightness, reliable quality, uniform brightness, brightness >160000Lux, and film blackness D>4.5.2 ... . Cooling fan 9. Viewing screen 10. Cooling fan XK-300C LED X-Ray Film Viewer Box