# Where ia the 5v pin on the tool head board

**URL:** <https://forum.sovol3d.com/t/where-ia-the-5v-pin-on-the-tool-head-board/8664>\
**Category:** Sovol Zero\
**Created:** [September 6, 2025, 4:33am UTC](https://forum.sovol3d.com/t/where-ia-the-5v-pin-on-the-tool-head-board/8664 "2025-09-06T04:33:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![garry](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@garry](https://forum.sovol3d.com/u/garry)\
**Post date:** [September 6, 2025, 4:33am UTC](https://forum.sovol3d.com/t/where-ia-the-5v-pin-on-the-tool-head-board/8664/1 "2025-09-06T04:33:42Z")

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ive been wanted to add some nozzle leds to my zero buti can figure out witch of the 4 pins on the tool head borad are 5v and -v

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**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\
**Post date:** [September 6, 2025, 4:37am UTC](https://forum.sovol3d.com/t/where-ia-the-5v-pin-on-the-tool-head-board/8664/2 "2025-09-06T04:37:58Z")

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> **[Extra\_Pin\_definition.pdf](https://github.com/Sovol3d/SOVOL-ZERO/blob/main/Motherboard/Extra_Pin_definition.pdf)**