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VIKING™ 1740 Ignition@trade; Welding Helmet - K4375-3


Top Features

  • 6.3 Sq. Inch Auto-Darkening Viewing Area with Exclusive 4C® Lens Technology, 1/1/1/1 Optical Clarity
  • Variable 9-13 Shade, Delay and Sensitivity Controls with Grind Mode
  • Lightweight 18 oz. design with offers all day comfort
  • Easily adjustable and cushioned headgear for optimal fit
  • 2 year hassle free warranty

MSRP: $148.00

Where To Buy

Welding Gear Details

VIKING 1740 Series

Our VIKING 1740 is our feature packed, economically priced auto-darkening helmet series for users ranging from hobbyists to students and even professionals. The lightweight 18.6 oz design features our easily adjustable and cushioned ratchet headgear to offer great comfort and fit. This is combined with an array of valuable optic features including our exclusive 4C® lens technology, a 1/1/1/1 optical clarity rating and a 9-13 adjustable shade range with grind mode.

4C® Lens Technology

4C Lens Comparison

  • 4C® Lens Technology - Broadens the color range & hues which can be seen in both light and dark states. This eliminates imperfections and color saturation to create the clearest view of the base material, arc & puddle
  • Perfect 1/1/1/1 Optical Clarity - This rating is determined by measuring blurriness, distortion, shade consistency and angle uniformity of the auto-darkening welding lens
Cartridge Size 4.33in. x 3.54in. (110mm x 90mm)
View Window Size 3.78in x 1.67in (96mm x 42.5mm)
Number of Sensors 2
Shade Control Internal
Variable Welding Shades DIN 9 to 13 with Grind
Sensitivity Control Variable Shade, Delay, and Light Sensitivity
Light to Dark Switching Time 0.00004 sec. (1/25000 sec.)
Delay Control (Dark to Light) 0.1 sec. min. - 1.0 sec. max
TIG Rating 5 amps
Compliance Compliance: ANSI Z87.1-2010/CSA Z94.3
Operating Temperature 14 - 131 deg. F (-10-55 deg. C)
Storage Temperature -4 - 158 deg. F (-20-70 deg. C)
Weight 18.6 oz (528 g)
OPTICAL CLARITY 1/1/1/1 (EN 379)
Extra cover lenses included - (2) inside and (5) outside.
Product Number
Product Name
VIKING™ 1740/1840 Series Outside Clear Cover Lens Pack
VIKING 1740 Inside Clear Cover Lens Kit
VIKING™ 1740 Series - ADF Cartridge Kit (-3)
VIKING™ 1840/2450/3350 Halo Style Hard Hat Adapter
VIKING® 1740/1840/2450/3350 - Slotted Hard Hat Adapter
Ratchet Style Headgear w/ Sweatband
VIKING™ Sweatbands for Ratchet Headgear Kit
Soft Cotton Back Pad for Ratchet Headgear Kit
Cheater Lens 1.50 MAG
Cheater Lens 1.75 MAG
Cheater Lens 2.00 MAG
Cheater Lens 2.25 MAG
Cheater Lens 2.50 MAG
Helmet Bib - Split Leather with Press Fit Seal
VIKING™ 1740 - Black Replacement Welding Helmet Shell