WELDING MASK/HELMETS MANUFACTURE / SUPPLIER STORE Our products enjoy brisk sales in the United States,Europe and Southeast Asia,etc.for their superior quality.All the products have been EEC and TUV/GS certified.The company itself has been ISO9001 certified. Top durable tools,indeed Based on superior quality.reasonable price,perfect service as our idea of business operation,we seekjoint splendour and work hard for prospering the Hardware industry together with friends from the hardware circle. SPECIFICATION: Model F1 Size of Cartridge 108.8 X 51 X 5.5 mm Viewing Area 88.4*34.5 mm Up to DIN 16 at all time UV Protection < 0.0001%(210-365nm) IR Protection < 0.01% (780- 2000nm) Light State 4 Variable Shade 11 Power Supply Solar Cell, 1pcs Li-Mno2 Batteries Lithium Battery Life Time(Hrs) 3000 Power on/off Fully Automatic Switch Time Light to Dark 0.5ms Dark to Light 0.3--0.7(Auto) Operating Temperature - 10℃--60℃ Storing Temperature - 10℃--60℃ Helmet Material High Impact Resistant Plastic/Polyamide(Nylon) Warranty 2 years from the date of delivery Auto-darkening Yes Variable Shade Yes Sensitivity No Grind Mode No Changeable Battery No ◆ High quality LCD and multilayer optical interference filter for clear view and permanent UV/IR protection to DIN 15 ◆ Lens powered by solar cells with no need of battery changes ◆ Ample mask space and very safe structure ◆ Suitable for high welding operation temperature ◆ Water/Fire Proof ◆ Adopt Swiss filter