# Why RUIDA doesn't light the laser below 10mm/s (80W)

**URL:** <https://forum.lightburnsoftware.com/t/why-ruida-doesnt-light-the-laser-below-10mm-s-80w/120353>\
**Category:** Ruida controllers\
**Created:** [December 12, 2023, 10:27am UTC](https://forum.lightburnsoftware.com/t/why-ruida-doesnt-light-the-laser-below-10mm-s-80w/120353 "2023-12-12T10:27:59Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**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:** [December 12, 2023, 1:00pm UTC](https://forum.lightburnsoftware.com/t/why-ruida-doesnt-light-the-laser-below-10mm-s-80w/120353/2 "2023-12-12T13:00:45Z")

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What is the minimum of the layer set to?

Most likely the _ **start speed** _ in the Ruida is set to 10mm/s.

Anytime you are at or below the _ **start speed** _, it will produce _ **minimum** _ power, as set within the layer. From my time with these, it works like this… Red is the power sent by the Ruida.

 ![start-speed-power-transparent](https://forum.lightburnsoftware.com/uploads/default/original/3X/8/6/86020d9c3e30c32a49c1909265f7de6defecf993.jpeg)

This is changed via File → Machine Settings → Start speed.

Good luck

😸

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