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Auto-Darkening Variable Shade Welding Helmet


Product Overview

The Smarter Tools MEGA-550S Auto Darkening Variable Shade Welding Helmet is ANSI certified and features a lightweight but durable clamshell design. The 550S is designed to protect the eyes and face from specks, spatter and harmful radiation under normal welding conditions. Variable DIN 9-13 offers extra protection. Headgear features multiple adjustments for a comfortable fit. The infinitely adjustable sensitivity and response times make this a smart choice amongst other welding helmets.
  • Lightweight shell design reduces neck tension and fatigue
  • Solar powered with replaceable CR2032 battery
  • Auto-on/auto-off power control
  • Variable shade from DIN9 to DIN13/light state DIN4
  • UV/IR protection infinitely adjustable delay times
  • 3.6 in. x 1.65 in. viewing area
  • Switching time 1/25000 second
  • 2 extra outer lens shields and 1 extra inner lens shield
  • 3 years manufacturer's limited warranty

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Auto-Darkening Variable Shade Welding Helmet
Gen X Series Chameleon EPF Welding HelmetGen X Series Black Asp EPF Welding Helmet40 VizI4 Series MO3 RFP Welding Helmet
BrandSmarter ToolsSave PhaceSave PhaceSave Phace
NameAuto-Darkening Variable Shade Welding HelmetGen X Series Chameleon EPF Welding HelmetGen X Series Black Asp EPF Welding Helmet40 VizI4 Series MO3 RFP Welding Helmet
Fully adjustableYesYesYesYes
Spatter shieldYesNoNoNo
Lens height (in.)1.651.421.421.85
Lens width (in.)3.63.623.623.82
Product Weight (lb.)1.32.0 lb2 lb2 lb
Safety Features Heat ResistantHeat ResistantHeat Resistant,Heat Resistant Outsole,Puncture Resistant
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Lens height (in.)
Lens width (in.)


Fully adjustable
Product Weight (lb.)
Safety Apparel Product Type
Welding Helmets
Sensor bar
Spatter shield

Warranty / Certifications

Certifications and Listings
ANSI Certified
Manufacturer Warranty
3 Year Limited Warranty

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.3
    out of 11 reviews
  • 100% recommend this product
Filter by:
Showing 1-10 of 11 reviews
Good entry-level helmet
I'm not a professional welder -- strictly amateur. For me, this helmet is perfect. I'm not going to get upset about the relatively weak straps or the adjustment mechanism that is a little on the flimsy side. If I were wearing it every day, this would be a concern. That being said, what you get is amazing for the price. The auto-darkening (adjustable shades, adjustable delay, adjustable sensitivity) really works well, and the solar cell on the front makes sure that the internal batteries will last indefinitely. The most amazing thing is that it is sensitive even to low-amp tig welding on thin materials -- rated for anything above 10 amps. I'm still working on the classic exercise to weld aluminum cans together, and it's worked well with the little tiny 10-20A arcs that accompany this process. My mentor in welding has said that he paid $300 for a similar helmet twenty years ago, and he's impressed at the value that the helmet represents.
by gallus
  • Recommended Product
Love it!
I’ve wanted an auto darkening welding helmet for some time, and when I got the opportunity to get this one I jumped on it. I’ve been welding for the past 40 years, and this is the best accessory yet, by far. The lens is clear enough to see the material being welded and the electrode tip, and darkens when the arc is struck so quickly the is no flash seen whatsoever. The headgear is comfortable and easily adjusted. The degree of shading, delay and sensitivity are easily adjusted. Overall, I give this an A+!
by Jim
  • Recommended Product
Good welding helmet
This is a very good basic welding mask. As you can see, my daughter painted it for me. The mask portion adjusts. and you can see a close up of the settings on the inside of the helmet. The straps are plastic and adjustable. The mask fits securely and works well. You have clear vision when welding and the helmet protects your full face from any sparks and damage to your eyes.
  • Recommended Product
3 people found this helpful
Great helmet
The auto-darkening variable shade welding helmet is a great design. It is a lightweight shell design and has an auto-on/auto-off power control with solar power built right in. It has a variable shade from DIN9 to DIN13 and is UV/IR protected. The viewing area is 3.6" x 1.65". It weighs only 16 oz. and Has a fully adjustable head band that makes it comfortable to wear.
by HomeDepotCustomer
  • Recommended Product
Put it on and weld
Put it on and weld
by Alan
  • Verified Purchase
  • Recommended Product
4 Star Review
Rating provided by a verified purchaser
by Carl
  • Verified Purchase
The first time using this welding mask it would only...
The first time using this welding mask it would only auto darken about 40% of the time. Returned it and bought the nicer one. Would not recommend this welding helmet
by Kyle
  • Verified Purchase
This helmet is great it works as advertised and at a great price .
This helmet is great it works as advertised and at a great price .
  • Verified Purchase
  • Recommended Product
It worked well. I had never welded and I purchased this to go along with a small welder I purcha...
It worked well. I had never welded and I purchased this to go along with a small welder I purchased. It took me a minute to figure out how to set the relay and the darkness. It did what I needed it to do. i have nothing to compare it to... Lack of experience but once I got it set to my liking it performed well. I feel the price point was appropriate for the product. Over all satisfied. .
by Robert
  • Verified Purchase
  • Recommended Product
Work great for low price , I'm a student welder...
Work great for low price , I'm a student welder an it works perfect, I will upgrade soon but this one is great
by Weld24
  • Verified Purchase
Showing 1-10 of 11 reviews