●产品描述：
3M Welding Helmets
Stand out from the crowd! The 3M? Speedglas? 100 Welding Shield 'Graphic Editions' are exceptionally light in weight, but powerful in performance. The shields have excellent optical quality, reliable light-to-dark switching and are available in a choice of 5 graphic designs. They can be used for most arc welding processes, such as stick (MMA), MIG/MAG and many TIG applications. The easy-to-use Speedglas 100 Shield is the ideal 'first' auto-darkening shield for hobby welders, farmers, DIY enthusiasts and maintenance or construction workers who weld infrequently but value high levels of comfort and excellent protection.
The 3M? Speedglas? Variable Shade Filter has 5 user-selectable dark shades, from shade 8 to shade 12, and a light shade of 3. It benefits from 3 sensitivity settings: a normal setting for most types of welding (both indoors and outdoors), a setting for when other welders are working nearby, and a setting for low-current or stable arc (e.g. TIG) welding.
Speedglas? 100V Filter specifications:
Approvals eye protection: Conforms to EN379.
Classification: 1/2/2/3.
Switching time, light-dark: 100 - 250ms.
UV/IR protection: Shade 12 (permanent).
Viewing area: 44 x 93.
Light state: Shade 3.
Dark state: Shade 8-12 (variable)
Battery lifetime: 1500 hours.