• Battery powered with solar for long life (up to 5000hrs) with changeable batteries required.
• Two Independent Arc sensors
• Filter Darkening reaction is 1/25000 sec.
• Light weight well-balanced design fully adjustable headgear provides comfort and reduces fatigue.

SPECIFICATIONS: 

• Viewing Area: 93*43mm
• Power supply: Solar cells and lithium battery
• UV/UR protection: DIN16
• Switching time: <1/25000s
• Grinding Function: YES
• Replace battery: YES