Auto-darkening Welding Helmet Product Name: Auto-darkening Welding HelmetStandards:EN379 , ANSI Z87.1 , CSA Z94.3Material: PPColor: BlackFeatures: – 2-step delay function– Rechargeable lithium Battery– USB fast charging Product Name:Auto-darkening Welding FilterStandards: EN379 , ANSI Z87.1 , CSA Z94.3Color: BlackFeatures:– 2-step delay function– Rechargeable lithium Battery– USB fast charging