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Walter Surface Technologies

Walter Surface Technologies S540-12 Retrofit ADF Welding Lens Shade 12

SKU CH-K37F-3EK57

Auto-darkening retrofit lens provides fixed shade 12 protection for 5x4 welding helmets

  • TypeWelding Protection
  • Retrofit ADF lens upgrades 5x4 welding helmets
  • Single shade 12 protection for high-amperage work
  • HD technology delivers clear weld-pool visibility
  • Auto-darkening filter switches instantly on strike
  • Walter Surface Technologies quality for professional use

Walter S540-12 Retrofit ADF Lens

The Walter Surface Technologies S540-12 is a replacement auto-darkening filter designed to upgrade existing welding helmets. It fits the standard 5 x 4 inch window size found on many models. This new lens brings modern darkening technology to older headgear.

Suitable for welders needing a fixed shade 12 lens

This unit suits operators who work consistently at a single amperage range and prefer a fixed-darkness filter. It is not for users who require variable shade adjustment or automatic darkening that switches between light and dark states. Buyers with helmets that do not accept a 5 x 4 inch cartridge should look at other options.

Fixed shade 12 protection level

The lens delivers a permanent shade 12 rating, which determines the amount of light transmission allowed during the weld. Confirm that your application and process specifications call for this exact shade number before purchasing.

Highlights

  • Retrofit ADF lens upgrades 5x4 welding helmets
  • Single shade 12 protection for high-amperage work
  • HD technology delivers clear weld-pool visibility
  • Auto-darkening filter switches instantly on strike
  • Walter Surface Technologies quality for professional use

Specifications

BrandWALTER SURFACE TECHNOLOGIES
TypeWelding Protection

Questions about this item

Which shade should I select for my 5 x 4 helmet?

The lens is supplied in a fixed shade 12; choose this if your process requires that darkness level.

What does the shade 12 rating mean when I am welding?

Shade 12 provides a dark filter suitable for higher-amperage applications; the lens stays at that darkness while you work.

Will this retrofit lens fit my existing 5 x 4 helmet?

Yes, the S540-12 is designed to retrofit most 5 x 4 welding helmets.

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