# \#4710 safety valve

**URL:** <https://lookmumnocomputer.discourse.group/t/4710-safety-valve/2789>\
**Category:** KOSMO MODULES\
**Created:** [January 26, 2021, 11:52am UTC](https://lookmumnocomputer.discourse.group/t/4710-safety-valve/2789 "2021-01-26T11:52:21Z")\
**Posts on this page:** 1\
**Showing post:** 78

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**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\
**Post date:** [April 1, 2021, 6:43pm UTC](https://lookmumnocomputer.discourse.group/t/4710-safety-valve/2789/78 "2021-04-01T18:43:27Z")

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> [@CyroS](#):
>
> they’re still getting far too hot

Far to hot for you, or for the resistor?

Two 47 ohm resistors in parallel would give you 12/(47/2+12.6/0.15) = 112 mA through the circuit, and each resistor sees half of that or 0.056×0.056×47 = 0.15 watt which is well within spec for a 1/4 watt resistor. See the graph [here](https://lookmumnocomputer.discourse.group/t/safety-valve-27r-is-smokin-hot/748/6) for how using more resistors lower the power dissipation for each individual resistor.

If you’re still concerned, you could try shorting the resistor. The valve can handle the full 12 V just fine.

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