Description There’s work that needs to be done. And some workplaces are just rougher than others. Conditions can be challenging – so we made it simple: You do the heavy work – we make it feel easy. With the all new Optrel Helix - A helmet made for everyone who doesn’t like to compromise. Full protection and full versatility – in its lightest form. With our innovative slide up technology, you can adjust to the realities of your job within seconds. The Helix remains incomparably light and perfectly balanced - eliminating the pain causing effects of ordinary flip up helmets. No more tunnel view – due to our “Nose Cutout Technology”. Have everything in sight while working – with a field of view six times larger compared to other products. All that makes the Helix the perfect companion for welding, grinding and cutting in heavy steel construction. For all who know what real heat feels like - and still want to keep a cool head. Even after hours of work. Fully compatible with “Swiss Air“ – the best solution for, clean, fresh air – without any compromise in terms of mobility and communication. So you can focus on your work – and let us take care of the rest. The Optrel Helix. Hard work never felt so easy The helix quattro is designed for extreme performance. With a protection level ranging from 4 to 14 and the optically highest classification according to EN379 of 1/1/1/1, it is the ideal protection for heavy and extremely difficult welding tasks, even in extreme situations or viewing angles. Features Slide up Anti-glare Removable hardhat Twilight function Sensitivity control True color vision Warranty extension 2+1 years Rechargeable battery Opening delay Approved for overhead welding  Areas of application Stick Welding (SMAW) MIG/MAG (Metal Inert Gas Welding, GMAW) GMAW high performance welding Cored wire welding TIG welding (TIG, GTAW) Plasma welding Plasma cutting Gas welding Grinding mode With the Helix, Optrel offers a welding helmet for work under the most difficult conditions. A slide-up helmet with internal ADF that has all the technical features of an optrel helmet: Panorama XXL field of view ShadeTronic Fadetronic Rechargeable battery unit with charging via welding arc 5-point multi-detection sensor technology Included with Product Helix Quattro Welding Helmet  IsoFit Headgear w/ removable hard hat Operating Instructions Storage Bag Front Lens Micro USB Charging Cable  Guarantee Card Technical Specs Technical specifications Protection levels:  ShadeTronic inactive: protection level 3.0/4.0* active, manual: protection levels 8-13/9-14* Automatic protection level regulation over the protection level range 4<13M/5-14M* with an individual calibration option of ± 2. Power Supply:  Solar cells, Li-polymer battery, chargeable via micro USB cable Battery Life:  300 to 500 charging cycles  Sensors: Five sensors Sensitivity:  Infinitely adjustable, new with “Super High” sensitivity Switching Time: Light to dark: 0.090 ms at room temperature, 0.070 ms at 55°Cdark to light: 0.1 s to 2.0 s (with FadeTronic) Field of View: Depending on headgear adjustment, 2.3 to 6.3 times the field of view of a 100 x 50 mm industry standard anti-glare cassette Battery Life:  300 to 500 charging cycles Classification EN379: Optical class: 1 Stray light class: 1 Homogeneity class: 1 Angular dependence class: 2 Dimensional Stability: Welding protective mask: up to 220 °C  Front lens: up to 137 °C Eye Protection: Ultraviolet/Infrared Protection: Maximum protection across the range of protection levels  Operating Temperature: -10°C to + 55°C / 14°F to 131°F  Storage Temperature: -20°C to + 70°C / -4°F to 158°F  Total Weight: 640g  Certifications: CE, UKCA, ANSI, EAC, AS/NZS, meets CSA Z94.3 Meets pr ISO 16321 standards “TIG+” (“low amp Tig” process)  Warranty: From the date of purchase: 2 years for manufacturing and material defects, 6 months for the battery +  1 additional year (excluding the battery) if you register your product within the first 6 months (from the date of purchase) at https://optrel.us/product-registration/  * Protection level extension when using "Inner protective pane colorfast +1.0" - Article 5000.173 Review Video Accessories