3M Speedglas 100 Series - Technical Specification

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Technical Specication
Weight:
Weight welding shield
(incl welding lter): 440 g
Viewing area: 44 x 93 mm
UV/IR protection: According to shade number 12
(permanent)
Switching time light to dark: 0.1 ms (+23°C)
Opening time dark to light (delay) 100 ms-250 ms
Light state: shade no 3
Dark state: shade no 8-12
Battery type: 2 x CR2032 (Lithium 3V)
Operating temperature: -5°C to + 55°C
Battery life: 1500 hours
Head sizes: 50-64
Material
Shield: PA
Welding lter: PA
Headband: PA
Protection plate: PC