had a Harbor freight auto helmet and it was pretty dark for Mig -also once I started tig welding it would sometimes flash me , especially when welding small parts at low amps.
I bought an Antra AH6-260 4 sensor helmet fully auto on off for about $45 from amazon and it has been great almost 2 years of use no problems or even battery replament needed.
It has a grind mode, and has replaceable batteries , is also solar powered.
It accepts cheater lenses and also has a test mode, sensitivity adjustment and delay control fast 1/25000 second dimming response and also has a 2 range selector 4/5 - 9 for plasma cutting and acetylene and 9-13 for most stick and Mig.
Also comes with 6 replacement outer lenses , batteries included and Tig rated down to 2 amps
has over 750 reviews is their Best seller a 4.5 rating for $45.95