Auto-darkening welding helmet 1) Model: ZTG-6 Series 2) Adapt to CHINT ADF FS-B1,FS-B2;FS-B2j, FS-B4; FS-B4a;FS-B6 3) Material: Nylon 4) Fire resistance: yes 5) Dimensions:340mm×220mm×190mm 6) Fasion design, reasonable ergonomic structure, comfortable and convenient to use 7) Use high quality LCD and multilayer interference filter. provide clear view and permanent UV/IR protection up DIN16. 8) Power suppply:by solar cells and 2 pcs 3V lithium batteries, the batteries can be replaced. 9) Color:suitable for various color paint and decals. 10)Packing methods: a: 4 pcs of helmets packed together in one carton( normal). N/G weight: 2.284/5.171KGS Size of carton: 540×534×316mm b: 6pcs of helmets packed in one carton( economical). N/G weight: 7.341/3.45KGS Size of carton: 810x534x316mm c:20 pcs of helmets packed in one carton (economical N/G weight: 10.5/20.07KGS Size of carton: 742x534x445mm