... .Solar Powered 3.Variable shade control, welding helmetSolar Powered Liquid Crystal Auto-Darkening Welding helmet ApplicationTIG welding, MIG welding, arc welding, plasma cutting, etc Characteristics1). The internal ... :0.2s, slow:0.8sPower supplyLithium cell+ Solar power(≥5000 welding hours)Working temperature-5°C~+55°CView size90×40mmUV Transmittance313nm ...