0.165 ms at 55 °C
For constant welding.
The DIN 4/11 helmet out of the optrel pro-line meets all sorts of needs: safe protection, comfort, individual design and consistent quality make the optrel p530 an optimal working tool for pro and occasional welders. In addition to the shade level 4/11, the helmet offers a infinitely variable sensitivity and delay function. This guarantees a maximum on comfort and absolute efficiency.