Description:

-Power Supply: Solar cells with built in rechargeable batter -Power On/Off: Fully Automatic -Sensitivity Control: Outboard mounted "Sensitivity knob", infinitely adjustable -Welding / Grinding Modes: Helmet can be to variable shade "weld" and fixed shade "grind" mode -Switch Time Light to Dark: 1/30000 s(0. 000033sec) (-5C, 0. 0008 sec) -Switch Time Dark to Light: 0. 250. 8S at short-long position -Operating Temperature: Use between 23F (-5C) and 131F (55C) only -Storing Temperature: -20C (-4F) to + 70C (158F) Auto-Darkening Welding Helmet ; Helmet Material: Light impact resistance nylon shellColor: Solid Light Grey/Sliver ;Viewing Area: 3-7/8" x 2-1/8"; Cartridge Size: 4. 33" x 3. 54" x 0. 35"UV/IR Protection: Up to Shade DIN16 continuous, in all modes and settingLight State: Shade DIN4 ; Darkened State: Shade DIN 9 to 13 VariableQuantity: 1;Weight: 1. 1 lbs.