# What is my fibers actual wattage? **URL:** \ **Category:** Community Laser Talk\ **Tags:** galvo, fiber-galvo\ **Created:** [January 26, 2026, 10:31pm UTC](https://forum.lightburnsoftware.com/t/what-is-my-fibers-actual-wattage/187147 "2026-01-26T22:31:23Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![jkwilborn](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/jkwilborn/32/63089_2.png) [@jkwilborn](https://forum.lightburnsoftware.com/u/jkwilborn)\ **Post date:** [January 28, 2026, 2:09pm UTC](https://forum.lightburnsoftware.com/t/what-is-my-fibers-actual-wattage/187147/5 "2026-01-28T14:09:15Z")
> [@BaronPork](#): > > Educate me please I tried to in this post from your original. > [@4W galvo fiber. What good uses?](https://forum.lightburnsoftware.com/t/4w-galvo-fiber-what-good-uses/187072/4): > > No it isn’t. These are pulse lasers, unlike your co2 which is as a cw (continuous wave). They pump up and then the q breaks down and it dumps what’s in the fibers, this is part of a amplification stage in LASER. This graphic is from my JPT M7 MOPA manual. Yours is 5nS pulse width (q-pulse), if I recall. Without physics, they wouldn’t work at all. There’s a lifetime number of them of them out there to learn about. This is a [JPT video on how a MOPA works](https://www.youtube.com/watch?v=kKeYq7Lc8X0). As far … If you don’t understand, then please specify what you don’t get and we’ll try to help you. Posting almost the same question more than once just slows down everyones response to this and other questions. > [@BaronPork](#): > > Do i get to the other end of the fiber on top of the tower to find some other model numbers in there ? Most of the people that _ **build** _ these buy a source, this usually includes the light cable to the galvo head, from a separate manufacturer and the lens from a different manufacturer. There is a control board that someone else manufactured, driven by power supplies from a power supply manufacturer. It might have a motor driver for using a rotary by a different manufacturer. Again, it can have a very high peak output, but can only do it so fast. Spread that peak over time and you end up with an average. Are you sure of it’s frequency? 😺 --- _[View the full topic](https://forum.lightburnsoftware.com/t/what-is-my-fibers-actual-wattage/187147)._