... time is 1/12,000 sec. Auto-darkening shade, lens sensitivity and delay controls are internally adjustedManual on/offSolar-assist ... AAA batteries (2,000) hours on MIGNot recommended for Low-Amp TigLens Speed: 1/12,000Shade Control: #9-12 InternalSensitivity ... auto offBattery Life 2,000 hours, MIG replaceable AAA batteriesMagnifier Lens Holder: YesWarranty: 24 months Blue Flame,welding helmets,auto ...