3M 783120 Speedglas 100V Helmet Welding Headpiece. Features: Complete system made of high-quality, UV-protected ABS plastic with 3M™ Peltor™ G3001 Helmet. The G3001 helmet, one of the lightest safety helmets on the market, has excellent values for absorbing and distributing falling object forces. Variable dark shade 8-12 (100V). Can be locked in the open position, for example, during grinding. The delay function adjusts the time to transition from dark to light. Recommended industries: Metalworking.