what welding helmet to use

I prefer a chin activated welding helmet over all others. (research them online if you're not familiar with them) Unlike the auto-darkening helmets that are sold, you are able to see through a clear (untinted) lens instantaneously by slightly opening your jaw. Once you get one set up properly and get used to it, you'll never want to use anything else. The auto darkening ones I've used are difficult to see through in low light conditions such as beneath a car. - And I hate having to manually flip up the old style helmets especially when you need both hands free for some things you weld.