It was enough that focussed with a lens, I could melt holes in my black Swiss Army knife. A new standard for laser output?? :) There is a good survey article on metal vapor ion lasers in Scientific American back in the early 70's. They talk quite a bit about the HeSe laser, ...
1620 VA, 115 V: max. 920 VA EN 61010 IP42 EN 60529 Portable impact-resistant plastic case with integrated trolley and pull-out handle Black 451 x 654 x 279 mm [≈ 17.8" x 25.8" x 11.0"] with casters and handle Approx. 16 kg [≈ 35.3 lbs] Padded and adjustable shoulder ...