# Extruder Fan 1 Controlling an LED?

**URL:** <https://forum.lulzbot.com/t/extruder-fan-1-controlling-an-led/2231>\
**Category:** Software\
**Created:** [September 15, 2015, 4:52am UTC](https://forum.lulzbot.com/t/extruder-fan-1-controlling-an-led/2231 "2015-09-15T04:52:10Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ninjanick](https://avatars.discourse-cdn.com/v4/letter/n/c68b51/32.png) [@ninjanick](https://forum.lulzbot.com/u/ninjanick)\
**Post date:** [September 15, 2015, 4:52am UTC](https://forum.lulzbot.com/t/extruder-fan-1-controlling-an-led/2231/1 "2015-09-15T04:52:10Z")

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Is it possible to control an LED from Extruder Fan 1 if you only have a single hotend connected? I tried using the M106 command, but it only turns on Extruder Fan 0. Do I need to enable the 2nd Extruder in Marlin? If so, judging by how I could only find command M106 it looks like both fan outputs would turn on similarly and not be individually controlled.