Hello everyone I have a mac mah j vi pc for 3 years! no worries! with the fact I work with ilda! it is cheaper than mach mah! he has a really super PCHE! for the price of laser is nothing wrong at the same drawing for his WRITING works very well in comparison with 1 watt laser in that silent world rgl by the way, therefore a 300 mw mini LED Class 4 the mac mah silent as visible after so I think it s the lottery is a good bit down on series or not veiled but please avoid comparing a laser has a EUR 600 EUR 4000 to 2000 see lol