Lens Size: 4.3 x 1.7 inches (111 x 42 mm)
Light shielding degree: Welding: #9 - #13, Normal: #3
Weight: 16.9 oz (490 g).
Power supply: Solar battery, 3V lithium battery (CR-2032) x 2 (included).
Sensitivity adjustment: Stepless adjustment.
Return time adjustment: Stepless adjustment.
Shading reaction speed: Approximately 1/25,000 seconds.
Includes grinder mode function.
Compatible with hand rods to low current TIG welding.
Light sensor + high frequency sensor