Check your eligibility criteria for tender Supply of Light Weight Auto Darking Welding Helmet For Welders Of Mig Mag Welding Work. Standards-Ce: En379:2009; En175:1997. Specifications Should Be. 1 Viewing Field- 96X39 Mm Approx. 2 Switching Time-0.1 T O 0.3 Ms Light To Dark 3 Delay Time- 0.1 To 0.8 Sec. Dark To Light 4 Uv/Ir Protection- Up To Shade Din 16. 5 Weight Not More Than 500 Gm. 6 Operating Temp- -5 Degree C To 55 Degree C. 7 Shell Material- Polyamide Nyl On/ Pp Fire Proofing, Note: Additional 03 Nos. Protective Glass Plate/Protection Plate Should Be Provided With Ea Ch Auto Darking Helmet. Warranty Period: 30 Months After The Date Of Delivery