Me three on the HF Helmet. However, there is a better one out now. I needed to eliminate that damnable Halogen light. It was just a pain to drag around all over the place, so I looked and noticed that Lincoln makes a Viking 3 series helmet that lets you dial down the shade number clear down to 6. The problem I was having was, the lowest setting (9) was just a TAD too dark causing me to go for the halogen. When its set on 8, woohoo! I can see again! I think the eye calibrator didnt have his machine working that day or something cause 8 works perfect for me.
Add to that the magnifier lenses available for it and I have never had such an enjoyable experience welding. They arent cheap though.