What is the recommended shade of lens for low to medium amperage SMAW?

What is the recommended shade of lens for low to medium amperage SMAW?

• A. Shade 8
• B. Shade 10
• C. Shade 12
• D. Shade 14

Answer: (B)

Choosing the lens shade is about balancing eye protection with the ability to see the weld clearly. For manual shielded metal arc welding, as amperage grows the arc becomes brighter, so you need a darker shade to protect your eyes. At low to medium amperage, the arc isn’t as intense, so a mid-range shade provides enough protection while still allowing you to clearly view the weld pool, bead, and edges to control the process and detect any issues as you weld. If the shade is too light, you risk UV/IR exposure and eye injury; if it’s too dark, you’ll struggle to see the puddle and could miss defects or mismanage the technique. So, the mid-range shade is the best balance for low to medium amperage SMAW.

Choosing the lens shade is about balancing eye protection with the ability to see the weld clearly. For manual shielded metal arc welding, as amperage grows the arc becomes brighter, so you need a darker shade to protect your eyes. At low to medium amperage, the arc isn’t as intense, so a mid-range shade provides enough protection while still allowing you to clearly view the weld pool, bead, and edges to control the process and detect any issues as you weld. If the shade is too light, you risk UV/IR exposure and eye injury; if it’s too dark, you’ll struggle to see the puddle and could miss defects or mismanage the technique. So, the mid-range shade is the best balance for low to medium amperage SMAW.