I've been using xTool for years, and have used the S1 for months with the 20W and IR modules. Recently, I purchased the 40W module, and WOW! For cutting and engraving wood and acrylic especially, it's really a time saver! I can't wait to test the limits and see what all I can create. Highly recommend!

Can’t believe what all I can do with this module. Much faster than the 10W

J'ai acheté ce module en plus de mon laser en 10W, je suis bluffé par ses performances.
C'est un 40w qui les vaut vraiment

it performs very well have no problem cutting or engraving with anything. I’ve tried so far excellent product.

I've been using the 20 watt most of the year. Does a great job and learned a lot of it's capabilities. With that being said, I've started experimenting even more and have been able to sell a few things. That's where the 40 watt comes in to play. Instead of waiting a certain amount of time for your project to complete to determine if you like the results, the 40 watt gets it done in basically in half the time. So really you complete your prototype faster so you can move on to production that much sooner. So not only is it a time saver, but you also get the added benefit of being able to work with thicker materials and in some situations get better results. If I new then what I know now based on my circumstances I would have bought the 40 watt from the beginning.