american optical cool blue welding lens. Overall Pick The Wens Lens Ultra Cool Blue (Original and Electric Ice) is 2 pieces of glass adhered together surface to surface with an optical adhesive, preventing any debris or moisture building up between the 2 glasses. american optical cool blue welding lens

 
 Overall Pick The Wens Lens Ultra Cool Blue (Original and Electric Ice) is 2 pieces of glass adhered together surface to surface with an optical adhesive, preventing any debris or moisture building up between the 2 glassesamerican optical cool blue welding lens  Welcome to WeldingWeb

Nativity Set *jakarta--indonesia* Palm Tree Style *new*Welding Helmet Blue Auto Darkening Welding Hood Mask Helmet Steampunk Hornell -Speedglas 3M Speedglas 9002X Hornell Speedglas Miller Digital Elite Snap On Welding Welders Helmet Hobart Helmet Welding Lens Shade Fibre Metal Welding Helmet Series Auto Darkening Welding Adflo System Lincoln Electric Welding Helmet Black Welding. For your consideration is 1 pair of vintage welding glasses. Not logged in American Welding Society Forum. The Ultra Cool Blue welding glass transmits light in the blue range (400 – 500 nm), but effectively blocks ultraviolet light of 400 nm or less. Browse our full line of Welders, Cutters, Welding Helmets, Replacement MIG Guns and Consumable. 0 Price $ 0. For 33 years, the American Optics Weld Cool or AOWC (Cool Blue Welding Lens as it was affectionately called) was the "perfect welding lens standard. BACKGROUND OF THE INVENTION 0003 Welding is a process of joining materials that involves the melting of work pieces that are then joined via aBusiness & Industrial; Agriculture & Forestry; Construction; Electrical & Test Equipment; Fuel & Energy; Healthcare, Lab & Life Science; Heavy Equipment; Heavy. Brazing usually requires a Shade 6 or Shade 8. THE DESIGN OF THIS RUG IS KNOWN AS A TRIBAL GEOMETRIC KILIM DESIGN TOO . More Items From eBay. Amazing clarity, and very affordable. Business & Industrial; Agriculture & Forestry; Construction; Electrical & Test Equipment; Fuel & Energy; Healthcare, Lab & Life Science; Heavy Equipment; Heavy. This lens is a N. Wens Electric Ice blue is more of a light/aqua blue. Each has four optical sensors. Higher quality provides better protection and a longer service life for expensive filter plates. These CR. High-performance, high-value products for your welding solutions. 0, welders experience the most realistic view that’s clearer and brighter – before, during and after every weld. It is a discontinued item since about 1990. 0" temple to temple, and the lenses measure approximately 1. American Optical Weld Cool No. This plate has no scratches or damage, it's just dirty from storage. idk what the hype is, but if im a keep making my 5-7k a week, and making severe cycle welds on weird alloys. "Truth and honesty" is our management ideal for American Optical Welding Lens, Photochromic Blue Cut, Optical Lenses Near Me, 1. T h anks for looking an d happy bidding On Mar-25-13 at 05:57:14 PDT. About $450 from my LWS. Forum; Welding Discussions; If this is your first visit, be sure to check out the FAQ by clicking the link above. Chicago Electric Auto Darkening Welding Helmet 91214 Blue Flame ANSI Lens. Made in the USA. This lens does have some light scratches a few chips an d a little weld splatter. Offering Top-quality Welding Glasses for Professional Welders Since 2014. 95. 5 allows welders to experience a brighter and more natural view. Thread Tools. IF YOThis estate sale find is an unmarked lens we picked up and it has a clear and clean 2" glass lens. 0. The General in Rose Gold with Cosemtan™ lenses. Kyle, the lens you are talking about is AOSafety's glass "Weld-Cool" filter plate. Antiq. Non e of the imperfectio ns effect the function of the lens. 25 inches, ideal for traditional welding helmets. This welding lens works in virtually various welding applications, like mma, mig and tig mode etc. There is the super blue drop in lens and the super magenta drop in lens. FREE delivery Thu, Nov 9. com, the ultimate Source for Welding Information & Knowledge Sharing! Here you can join over 40,000 Welding Professionals & enthusiasts from around the world discussing all things related to Welding. $. 1 Approved clear lens in front & rear of this product for your eye safety. $56. 1 Standard. The tefuawe American optical welding lens is a bit higher and has a faster switching time, 0. "Truth and honesty" is our management ideal for American Optical Welding Lens, Photochromic Blue Cut, Optical Lenses Near Me, 1. Retro Steampunk Sunglasses Personality Windshield Frame Round Color Film Reflective Cool Lens Knight's Glasses UV400 Protection. Hobby Welder for about 32 years. True-Color™ Gray Glass. com, the ultimate Source for Welding Information & Knowledge Sharing! Here you can join over 40,000 Welding Professionals & enthusiasts from around. Warning. AmericaFro sale green lens welding glasses. 19", HD Automatic Welding Lens for Pipeliner Welding Hood Parts. Impact-resistant (ANSI Z80. Anti-reflective backside coating. We are proud that we are the only company in the world to hold a United States Patent for a "Cool Blue Welding Lens". UV and IR are invisible yet very harmful to the eye, and standard green IR lenses block them. Developed FIRSTESS™ MP200, the Most Versatile 5-in-1 Welder & Cutter. This will ensure HIGH impact resistance. This curated collection features 52mm sunglasses. Welder, Plasma Cutter, Welding Helmet, Welding Equipment – YesWelder –It can pass straight through the lens of the eye and over time it can cause damaged vision or blindness. I used it for a few days of tig welding, ~4hrs actual booth time a day. Sorry I ain't selling but they are all over eBay I just picked up some cool blue 50mm lenses round ones for my. It has a manufacture date of 032021. . American Optical Cool Blue Welding Lens. Opens in a new window or tab. YesWelder: High-performance, high-value products for your welding solutions. Browse our full line of Welders, Cutters, Welding Helmets, Replacement MIG Guns and Consumable. In Stock. Find a LensCrafters store. Top quality cover plates contain a higher percentage of CR. You are currently viewing as a guest which gives you limited access to view discussions To gain full access to our community you must register; for a free account. The helmet features a large 12. 00. The OG Aviators: Ray-Ban RB3025 classic aviator sunglasses, $213. Im considering buying one but would like to. Excellent conditionPosted with eBay Mobile fromThis is a cool pair of American Optics green glass welding glass from the 1930's. 274 WC12 Shade 12 Welding Plate Lens 2" x 4 1/4" Opens in a new window or tab. 100% HAND-MADE by 1 man. 25 is a replacement lens for a standard welding helmet, intended for furnace observation, torching and brazing. The envelope is a little rough and looks like it got wet at one point but this plate is new old stock and has never been used. $129. 00. Vintage American Optical AO 12K GF 5 1/2 Pilot Aviator Sunglasses. 274 WC12 Shade 12 Welding Plate Lens 2" x 4 1/4". Super Blue Drop in Welding Lens Small 2 x 4. IWW member Century: 250 amp AC/DC, 295 amp AC, High Frequency Box Victor, Harris, and Oxweld. Re: The infamous AO cool blue lens. Super Blue Drop-In Welding Lens is a breakthrough drop-in welding lens that is used along with your regular welding lens. Premium Optics – The 1840 Series welding helmets feature the exclusive 4C lens technology, which creates a crystal clear, true color view of the arc and puddle. DesertRider33. Mo. Hello, I am an ASME Certified Welder. Miller 216326 Outside Cover Lens. This is the original cool blue with a gold side. Opti-Cool Welding Lenses is a premier optical welding lens supplier in Arizona, proudly serving customers nation and worldwide with custom glass lenses since 2014. Shipped with US first class small rate box. The Miller Electric 260938 Welding Helmet is one of their entry level helmets, but it still costs well over $100. Super Blue Drop-In Welding Lens is a breakthrough drop-in welding lens that is used along with your regular welding lens. Buy It Now. 5 x 5. When welding, there are three kinds of wave energies that you must protect against: ultraviolet (UV), infrared (IR), and visible light. The Aulektro Aqua are made from Grade A Schott Glass. 1 and CSA Z94. In beautiful condition. WeldingWeb - Welding Community for pros and enthusiasts > WeldingWeb MarketPlace > Shop, Trade, Sell Forum > (2) American Optical cool blue welding lens. 000 second viewing field#9 to#13 darkened state. Fixed Blade Knives; Folding Knives; Assisted Opening Knives. Remove the protective film from your new lenses and place them into the lens frame. 75" at the widest points with the blue portions of both lens laser etched C3 and. Available in 2 x 4 ¼. Up for your consideration is a new old stock American Optical Weld-Cool No. 6. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. Thread: (2) American Optical cool blue welding lens. a The MP200 is a functional and also powerful 5-in-1 welding device particularly designed for home DIY or maintenance projects. Phillips safety welding lens. The lens is effective and it works well. American Optical Weld-Cool Plate went out of business, the new old stock 2x4 lenses go for $500 - $750. Round Lenses, Welding Goggles, Motorcycle Goggles, Industrial Steampunk (317) $ 99. The lens are very dark. I am interested in your american optical cool blue welding lenses. Free Shipping. 00 LIKE NEW CONDITION USED MAYBE 5 TIMES FIRST STOCK IMAGE IS TRUE COLOR OF GREEN COMES WITH ORIGINAL LINCOLN BAG Top Features Auto Darkening Welding hood with 4x5 in. He sent me a couple of the new Cool Blue lenses sold by Wens Lens, and insisted I keep them. American Optical Safety Glasses Clear Welding Face Shield. Companies like Phillips Safety are dedicated to providing the best welding lenses at affordable prices and quick delivery. The auto-darkening welding lens by Lincoln Electric, C-series KP3775-1 is the best in terms of performance. $2. . Developed FIRSTESS™ MP200, the Most Versatile 5-in-1 Welder & Cutter. 274. I make custom passive. FREE shipping Add to. Vintage American Optical Ful-Vue Steel Mesh Safety Glasses w/ metal case - excellent condition. Developed FIRSTESS™ MP200, the Most Versatile 5-in-1 Welder & Cutter. 00. I want to extend a public. 5, Tig Rating 5 Amps, Thickness 0. 1 year hassle free warranty. Add to Favorites. 274 WC10 Shade 10 Welding Lens 2" x 4 1/4" New – Open box $750. they made a cobalt blue lens that will burn your retna out after a while i cant remeber the manufactures, but AO made a cool blue lens that is great the only reason the stoped making them is because they were having problems passing the ball bearing impact test from the factory. This enhances your control and increases weld quality, while reducing eye strain. American Optical Weld Cool Shade 10. Shop with confidence. perhaps a foreign concern could duplicate the optical quality and do it for cheap. More Items From eBay. Cool Ray American Optical vintage pilot aviator AO 12k gold filled sunglasses. No Cranks Or Chips. Library; Dictionary; Vault; Upcoming Auctions; Blog. This Lens gives the option to select between Shade 5-13. $600. It can be utilized to weld MIG (GMAW), Stick (SMAW), Gasless (FCAW), and also TIG. Thanks so much for. Browse our full line of Welders, Cutters, Welding Helmets, Replacement MIG Guns and Consumable. com: Cool Blue Welding Lens 1-48 of 250 results for "cool blue welding lens" Results Price and other details may vary based on product size and color. The welding lens is an American Optics Weld Cool Shade 10. Opens in a new window or tab. Amounts shown in italicized text are for items listed in currency other than Canadian dollars and are approximate conversions to Canadian dollars based upon Bloomberg's conversion6,117. 82 x 2. Size 2" x 4 1/4" (5/32) Available in shades 8 - 12. 274 WC12 Shade 12 Welding Plate Lens 2" x 4 1/4" Opens in a new window or tab. American Optical Weld Cool No. AoWC10H. 99. The solar shade lens is adjustable 4-9/9-13 and its optical class is rated at 1/1/1/2. $209. 0000000: 000000: 0000000: 00000: Auto-Darkening Welding Helmets . Welding Supply: Airgas Welding Helmets. Availbable in shades 4, 5, 6 and 8. Sent from my SAMSUNG-SM-N900A using TapatalkBeendou Auto Darkening Welding Lens Shade 9, 2x4. when no hard hat is required, the radnor® headgear faceshield frame is a cool, comfortable way. High-performance, high-value products for your welding solutions. In excellent working condition. American Optical's Phone number is 508 765 7085. S. Metal Welding Machine. 901 + accessories unused. Our Super Blue. Anti-reflective backside coating. Lens + Welding Helmet. Standards for Optical Clarity. The Best Glass Lenses. Wens Azure shade is between the Original and the Electric Blue. Fixed Front, Shade 9-13, Super Tuff Nylon, Black/Green in the Welding Helmets department at Lowe's. 99. These welding lenses come in a variety of shades from 9 to 14 and are used in several types of welding. Welding Helmet Blue Auto Darkening Welding Hood Mask Helmet Steampunk Hornell -Speedglas 3M Speedglas 9002X Hornell Speedglas Miller Digital Elite Snap On Welding Welders Helmet Hobart Helmet Welding Lens Shade Fibre Metal Welding Helmet Series Auto Darkening Welding Adflo System Lincoln Electric Welding Helmet Black Welding Helmet Hobart Welding Helmet 9002X Auto 3M Speedglass Welding Helmet. Introducing the Wens blue lens; Welcome to WeldingWeb. Ultra Cool Blue and Co. 8. Miller Electric 260938 Welding Helmet. The rectangular ones can be small, measuring 2” x 4. Truly, this is one of the best offers on the market. NEW Original American Optics #10 Cobalt Blue Welding Lens 2" x 4 1/4. Buy It Now. 5kw welding machine. American Optical Weld Cool Lens. Every time you use a welding lens you have UV protection. Look into Opticool welding lenses; they have a weld cool lens that's closer to AO in my. Wens Original is more of a medium to dark blue. It is superior in clarity, functionality, and economically. Mo: 8:00am - 4:00pm Tu: 8:00am - 4:00pm We: 8:00am - 4:00pm Th: 8:00am - 4. FramesDirect. Here we have to offer today a Huntsman 951P. Costume. FWIW one of the guys posted on another thread about Athermal welding lens. American Optical Vintage Filterweld Shade 7 Weld Plate Lens 2" x 4 1/4" - 1951. 25" (Shade eleven GOLD) 4. Welding Supply: Fibre-Metal Welding Hood Auto Darkening Lens. SKU WLD-SFP-WFS. I've been searching for an original american optical weld-cool lens #12 for some time now. Rare weld cool welding lens. Available in 2" x 4. Chromatically tuned True-Color gray tint reduces eye fatigue in bright light conditions. Welding Helmet Blue Auto Darkening Welding Hood Mask Helmet Steampunk Hornell -Speedglas 3M Speedglas 9002X Hornell Speedglas Miller Digital Elite Snap On Welding Welders Helmet Hobart Helmet Welding Lens Shade Fibre Metal Welding Helmet Series Auto Darkening Welding Adflo System Lincoln Electric Welding Helmet Black Welding. just because a lens darkens the light, does not mean its doing its best job for protecting your eyes. I need a decent lens. The new weld-cool is a green rather than an aqua blue while gazing through the lens while welding. replaceable clear cover lens. Lens Filter Category: 3. It launched a month ago, after extensive R&D to modernize the imposing style. [Laserline GmbH, Germany / Nuburu] Right: Compared with absorptivity in the IR region of the spectrum, the absorptivity of commonly welded materials like gold (Au), copper (Cu) and nickel (Ni) is. However, the bright and painful Visible Light wave spectrum is not fully eliminated by standard green welding filters, and while our Super Blue welding lens reduces yellow flare, our Super Magenta Drop-In works even better, with an outstanding resulting view. 25 is a breakthrough drop-in welding lens that is used along with your regular welding lens. Sign in Try for free Price Guide; M. Welder, Plasma Cutter, Welding Helmet, Welding Equipment – YesWelder – Lincoln Mig Flux Welder. These products would be ideal in gas welding applications for aluminum and cast iron as well as in metal, gas and glass furnace operations. Cool Vintage Split Lens Half Cobalt Blue Welding Glasses - Excellent Apparently Unused Condition Willson Goggles - Steampunk Fans Take Note!. It’s after the turn of the century when AO really kicks into gear–manufacturing processes mature, quality greatly improves, and optical glasses become much more affordable and popular. 00. Thread Tools. 75. Browse our full line of Welders, Cutters, Welding Helmets, Replacement MIG Guns and Consumable. Tefuawe Auto Darkening Welding Lens, True Color Blue Technology, Variable Shade 5-13, 2x4. Welding Helmet Blue Auto Darkening Welding Hood Mask Helmet Steampunk Hornell -Speedglas 3M Speedglas 9002X Hornell Speedglas Miller Digital Elite Snap On Welding Welders Helmet Hobart Helmet Welding Lens Shade Fibre Metal Welding Helmet Series Auto Darkening Welding Adflo System Lincoln Electric Welding Helmet Auto Darkening. Free Shipping. and a clear lens filter/shade for maximum visibility. Welder, Plasma Cutter, Welding Helmet, Welding Equipment – YesWelder – Buy Stick Welders. Saratoga in Yellow Crystal with True-Tone™ lenses. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. The standard spells out a test to evaluate welding lenses using four. Here you can join over 40,000 Welding Professionals & enthusiasts from around the world discussing all things related to Welding. The LINCOLN ELECTRIC 2×4 C-Series provides great view quality with unsaturated color & contrast thanks to its 4C Lens Technology. 8k) $ 12. I've done my best to show the cThe VIKING 3350, our top-of-the-line helmet series, provides the best optical clarity available in a welding helmet today and the largest viewing area in its class. 274 Shade 10 Welding Lens 2x4 1/4 Hardened. Originally made for gas welding aluminum, and cutting/brazing, the blue lens. from 535878602. 99. 00. 39 covers measure 2 x 4-1/4 in. 25 75 $4942 List: $59. Please look at the pictures for condition fromDescription. I was crusing thru the site and ran across this , looks like a ordinary glass lens for a welding helmit except for the color. BEST LIGHTWEIGHT: 3M Speedglas Welding Helmet 9100, 06-0100-30iSW Auto. Forum; Welding Discussions; If this is your first visit, be sure to check out the FAQ by clicking the link above. Many have found that the Cobalt Blue Lenses are also suitable for torch work, brazing and heat treating. x 4. The lens has. Since then, AO has originated sunwear styles worn by pilots, Presidents, and NASA space crews. After some thinking I started reading and found what seems like conflicting info. Thing makes NR232 look almost like a white led. This is a WC 10. Available to:. It just bugs me that with this lens i see 2 huge glare spikes coming from. Buy stick welders. Browse our collection of Welding Lenses here. The clearest blue glass welding lens in production today. Rating: $100. From what I have heard and read about they are just as good if not better than the american optical weld cool lense. i. CryptoThe clearest blue glass welding lens in production today. 70 shipping. Shop with confidence. I make custom passive glasses, cool blue welding lenses for pro welders, and more. 979 297 8944 #. 25 inches, perfect for welders who prefer a. Available for all types of clear prescription lenses, Blue-Violet Light filtering helps reduce your exposure to blue-violet light from natural and artificial sources. Buy It Now. View is crystal clear, colors are very easy on my eyes. Cool. A great back up lens, while waiting for your new Wens Lens! The Aulektro Brand lens for welding applications is by far the best single piece welding lens on the market. New – Open box. Add to Favorites Bronze Spikey Kaleidoscope Goggles, Steampunk Goggles, Rave Glasses, Coloured Lenses. cobra™ 40vi autodarkening blaze helmet cobra™ 40vi autodarkening blue helmet . Tefuawe Auto Darkening Welding Lens, True Color Blue Technology, Shade 10, Opens. To start viewing messages, select the forum that you want to visit from the selection below. Brand new in envelope, it has been stored in a drawer for years. item 1 American Optical Weld Cool-Plate Welding Lens shade 12 American Optical Weld Cool-Plate Welding Lens shade 12. They have been used. We here at Wens. It can be made use of to bond MIG (GMAW), Stick (SMAW), Gasless (FCAW), and also TIG. SkyMaster™ Glass lenses offer superior clarity and scratch resistance. Cenco cast iron hand crank optics color wheel. Constructed with high quality optical clarity glass. Those relate to a European standard on optical clarity of welding lens cartridges called EN 379. 00. dedwards04. Thanks CEP! What started out as a request to be loaned some gear turned out to be a very generous gesture by our resident hobby guy CEP. ALWAYS USE PROPER PPE and follow manufacturers recommendations!!. This is a one piece lense in plain or mirrored gold finish. . 1883 AO starts plans to make its own lenses in the U. 0 289764Welding Helmet Blue Auto Darkening Welding Hood Mask Helmet Steampunk Hornell -Speedglas 3M Speedglas 9002X Hornell Speedglas Miller Digital Elite Snap On Welding Welders Helmet Hobart Helmet Welding Lens Shade Fibre Metal Welding Helmet Series Auto Darkening Welding Adflo System Lincoln Electric Welding Helmet Auto Darkening. Thickness 0. The old American Optical Weld-Cool Cobalt blue filter was crystaline and extremely clear and cut out the glare. Only 10 left in stock - order soon. Welder, Plasma Cutter, Welding Helmet, Welding Equipment – YesWelder – Best Ac Dc Welder. The Super Blue Drop-In is a polycarbonate lens that blocks the yellow/orange line of the visible spectrum (589-600nm), improving your clarity of vision by greatly reducing the brightness. On average less than 0. Vintage Fendall f3H Blue Welding Clip On Flip Lenses Steampunk Safety Glasses . Hello, I am an ASME Certified Welder. Developed FIRSTESS ”¢ MP200, the Most Versatile 5-in-1 Welder & Cutter. This is a Shade 12 Cool Blue. Welding Supply: American Optical Welding Lens Cool Blue For Sale. 3. Opens in a new window or tab. Get the Ultra Cool Blue Lens in the shade you want, check out lenses from Aulektro, and even grab a fun hood sticker - all at our online store! In the history of welding safety lenses, one brand name has become legendary in the profession: American Optics Safety Weld Cool filter plate, usually called “ Cool Blue . 2” x 4 1/2”One tinted. Looking at these on their site. BEST VIEW AREA: Miller 280045 Black Digital Infinity. Tel: (409) 656-2588 24/7 Online Store Kountze, TX. American Optical Vintage Filterweld Shade 8 Weld Plate Lens 2" x 4 1/4" - 1951. 4 light state Sensitivity control- makes the lens more responsive to different light levels Delay control- adjusts the time for the lens to switch to the clear state after welding- 0. Topic Welders and Inspectors / Welding Equipment Classifieds / cool blue By Tyler1970 Date 12-14-2009 03:28 If anyone has a cool blue that they may want to get rid of for some reason. 5 out of 5 stars. Our Hours. YOU ARE BIDDING ON 1 TOP OF THE LINE HORNELL SPEEDGLAS FLEXVIEW 9002X Shade 3/9-13 AUTO-DARKENING WELDING. 99 with. Best Offer:YesWelder: High-performance, high-value products for your welding solutions. Browse our full line of Welders, Cutters, Welding Helmets, Replacement MIG Guns and Consumable. 99 Exc. YesWelder: High-performance, high-value products for your welding solutions. Free returns. com. 50 Magnification | 2″ Height x 4. For more information on any of these new products, feel free to give us a call at 800. 00001% of the harmful UV radiation will pass through the. $390. 15ms. You are currently viewing as a guest which gives you limited access to view discussions. Please see items in this auction. $1,000. 00. The clearest blue glass welding lens in production today. American Optical Weld Cool Lens No. Browse our full line of Welders, Cutters, Welding Helmets, Replacement MIG Guns and Consumable. American Optical Weld Cool Lens No. They are very old stock blue color By upten. Browse our full line of Welders, Cutters, Welding Helmets, Replacement MIG Guns and Consumable. Forum; Welding Discussions; If this is your first visit, be sure to check out the FAQ by clicking the link above. Blue: Polycarbonate Plastic: 2" 4 1/4 " Brown: 8" 6 1/2-8: Concealed Viewing Lens, Outer Filter Lens Cover: 9, 10, 11. com. Seller added the following information: American Optical"Cool Blue" welding lens shade 1 0(USED)Business, Economics, and Finance. Tefuawe Auto Darkening Welding Lens, True Color Blue Technology, Shade 10, with. a The MP200 is a flexible and also effective 5-in-1 welding device particularly designed for home DIY or upkeep projects. #4 - ANTRA AH6 SOLAR POWER AUTO DARKENING WELDING HELMET. Up for sale is a Vintage Pair of American Optical Polaroid Welding Safety Goggles. a The MP200 is a functional and also powerful 5-in-1 welding machine specifically created for residence DIY or maintenance jobs. We accept visa, mastercard, and american express retrofit single shade auto darkening welding lenses are perfect for .