Powering this welding helmet are a solar cell and a CR 2450 ... re welding for several hours in a day. Essentially, auto-darkening helmets use arc sensors to detect when a welding arc has started.

safety features and ease of use. Jackson HSL2 Welding Helmet: The Jackson welding helmet is the most basic helmet we tested. It doesn’t have any settings and is not auto-darkening. Bondurant ...