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Tread Solar Auto Darkening Helmet for Mig, Tic, or Arc Welding. Advanced technology for safer and more comfortable welding. Progressive absorbing filter lens to protect you from visiable and invisiable (UV&IR) rays.
*View area: 90X40 or 98X40mm
*Auto-Darkening response time:<0.0001s room temperature.
*Shade state: #9-#13 can be adjusted continuously
*Working temperature: -5 c to pluse 55 c (23 degree F-131 degree F)
*UV and Ir protection are compliance with En169, dark shade #16
*Power supply: Solar cell
* Weight:400G or 1.04 LBS | 
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