The auto darkening welding helmet is designed to protect from sparks generated from standard welding conditions and also includes UV/IR protection (DIN16) to provide additional protection. Dark shade: DIN 5- 9 & 9-13. Dark to clear delay time: 0.1 – 0.8 sec. Clear to dark switching time: 1/10000 sec. Clear state: DIN 4.Suitable for MIG, TIG & arc welding. Includes grinding & cutting functions. Power: Solar cells & lithium button cell battery 600mAh. Includes low battery and self-check function. Automatic power on/off. Cartridge size: 133 x 114 x 10mm; viewing area: 100 x 83mm.