I'm in the UK and don't do any professional laser work, so certification is not important to me.
I've looked at both Lightspace and Goldenstar before. Assuming the optical power specs are even close to reality, neither of them are even close to competitive with the EMMA offering when it comes to beam shows - f.e. the Goldenstar LM-RGB10W is £3200, whereas the EM-RGB2100M is around £1650, both with the same listed power and galvos that I suspect would both happily do beam shows at 30Kpps with no trouble. All I'm really interested in, in this case, is raw optical power. That's why I wondered whether anyone has checked the EMMA gear out and seen how powerful they actually are in comparison to their listed specs.
Lasers & stage lighting @ EMF Camp & NOVA Demoparty // electronics nerd // UK based.