I am doing a Group Buy and CNI does have a really good 473 labby available. I also know the best place to get a portable with that much power. Either way you need eye protection for yourself and anybody to be in the area while in use. Safety first, and still see later! I could help, but I need to know if you want a battery powered portable, or a lab type to plug into house currrent and if it's in the USA or some other place you will use it? Best Wishes! -Glenn