Detailed Product Description: Frame Size 110Ã90Ã9 mm (4.33â Ã3.54â Ã0.35â) Viewing Area 96Ã46 mm (3.79â Ã1.81â) Range of UV/IR protection up to shade DIN 14 at all time Light Shade DIN 4 Dark Shade from DIN 9 to DIN 13 Power on/off Automatic Switching Time (light to dark) 1/20,000s (dark to light) 0.2s when on high sensitivity, 0.8s on low sensitivity Sensitivity: high or low choice of keystroke, red or green light direction, adapt to TIG,MIG Power Supply Solar cell and two 3V lithium batteries Operating Temperature -5~55 Storage Temperature -10~70 Weight 0.108kgs Material ABS Packing methods: 60 pcs of filters packed in one carton. N/G weight:6.48/8.8kgs Size of carton:490mmÃ370mmÃ230mm