Technical specifications:
Shade number in light state:				DIN4#
Shade number in dark state:				DIN9# --13#
Response time:				less than 0.2ms
Battery:				Li-Mi&Solar cells
Lens size:				90×40mm
Min welding hours:				3000
Sensitivity Cont Delay				Quick grade--0.3s
Control:				Slow grade--2s
Weight:				450g
Main Market:US Europe,Australia,South america,South africa,Asia