Blue Technology HD True Color Welding Filter 2" x 4.25"

Model: True Color TR108 Filter dimension: 108*51*5.2mm View size: 92*31mm Light state shade: DIN3 Dark state shade: DIN9/10/11 shade options Switching time : 0.3-0.55ms as per different welding Delay time: 0.2-0.5S Operate temperature: –10°C—+55°C Power supply: Solar cell, no battery change required power on/off: Full automatic UV/IR protection: Up to shade DIN15 Net weight: 37g 1. In order to make sure our quality to win the market, we bought lost of filters from USA, Korea, Canada, Europe, like Techniweld USA, ArcOne singles 240, Save Phace ect. 2. Please search 'TynoWeld Welding Helmet' at YouTube to check real performance.