https://www.inverterfusion.co.uk/Optrel-Crystal-20-Auto-Darkening-Welding-Helmet-p/if123484.htm
£305 plus vat - was the cheapest when I bought it a few months ago and great service.
There may be a discount off it if you got to urchefabs youtube channel and use his code
Just placed the order......I hope I do not regret £350 on a welding helmet. But as they say, only one set of eyes and if you have the money I think it's a good choice.