... Z87.1 certifications . 4.Simple operation. Products meet the indicatorsHigh Definition cheap welding helmet parts EH-407/EF98481. Model of welding ... & Weight: PA/ PP, 0.52kgs.4. Viewing area: 98*48mm,high definition.5. ADF Frame Size:110*90mm. 6. UV/IR protection ... : 0.1~1.0s,Steplessly adjustable,11. Sensitivity:low or high,Steplessly adjustable.12. Power on/off : Automatic.13. EH-4 ...