# Probably a dumb question about EMU Pro aux outputs and amperage

**URL:** <https://community.ecumaster.com/t/probably-a-dumb-question-about-emu-pro-aux-outputs-and-amperage/5175>\
**Category:** EMU PRO\
**Created:** [January 31, 2026, 4:22pm UTC](https://community.ecumaster.com/t/probably-a-dumb-question-about-emu-pro-aux-outputs-and-amperage/5175 "2026-01-31T16:22:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Gancified](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/gancified/32/2644_2.png) [@Gancified](https://community.ecumaster.com/u/Gancified)\
**Post date:** [January 31, 2026, 4:22pm UTC](https://community.ecumaster.com/t/probably-a-dumb-question-about-emu-pro-aux-outputs-and-amperage/5175/1 "2026-01-31T16:22:06Z")

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I have an EMU Pro 16 (and a PMU24) that I’m running and I’m doing all my corner lights with strip LEDs that pull very very little power. If I want to PWM them off the PMU I have to chew up a 25A channel for what is likely less than .5 amp of use. I know the EMU Pro 16 has 16 x aux outputs and in the documentation it says ‘Maximum constant current: 5 A.’. Is that aggregate or each?

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**Author:** ![mkuklis\_ECUMASTER](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/mkuklis_ecumaster/32/104_2.png) [@mkuklis\_ECUMASTER](https://community.ecumaster.com/u/mkuklis_ECUMASTER)\
**Post date:** [February 2, 2026, 10:54am UTC](https://community.ecumaster.com/t/probably-a-dumb-question-about-emu-pro-aux-outputs-and-amperage/5175/2 "2026-02-02T10:54:11Z")

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Hi,

The 5 A limit is for each output.  
The total current through all low-side outputs is limited by the ECU’s power ground connections.