*. Viewing Area: 98x 43mm
*. Arc Sensor: 2
*. Light State: DIN4
*. Dark State: Variable shade9-13
*. Shade Control: External, Variable
*. Power Supply: Solar cell. Battery change required 2x CR2032 lithium battery*. Sensitivity Control: Adjustable
*. UV/IR Protection: DIN16
*. Switching Time: 1/25, 000s.
*. Dark to Light: 0.2-1.0s Adjustable
*. Operating Tep.: -10~+55 *. Helmet Material: PA(Fireproofing)