Replacement head gear for Sif carbon is an auto-darkening, welding helmet which provides high quality, low cost, shade 9-13 variable shade welding lens. The SIFOlympian is powered by the welding arc, therefore delivers consistent performance removing the need for battery replacement. The helmet can be used in most popular MIG and stick welding applications. Conforms with EN379, EN175 and ANSI Z87.1.