# Power adapter for spark core
**URL:** https://community.particle.io/t/power-adapter-for-spark-core/2750
**Category:** Hardware
**Created:** [February 10, 2014, 1:24pm UTC](https://community.particle.io/t/power-adapter-for-spark-core/2750 "2014-02-10T13:24:30Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@lamle](https://community.particle.io/u/lamle)
#### Post date: [February 10, 2014, 1:24pm UTC](https://community.particle.io/t/power-adapter-for-spark-core/2750/1 "2014-02-10T13:24:30Z")
Hi all,
This is my very first post after buying a park core and starting my interesting experiment with it. I am very exciting and thank you Spark for such an interesting device.
I have a question regarding power source for spark core. I will use it and a relay board to control a 220v power source and I want to use this 220v power source to power the spark core as well. Can someone suggest a good converter to use together with spark core so that it can use 220v power source please.
I see this but dont know if it is good: [http://www.ebay.com/itm/AC-110V-220V-To-DC12V-5V-Voltage-Converter-Dual-Output-Switch-Mode-Power-Supply-/131106318362](http://www.ebay.com/itm/AC-110V-220V-To-DC12V-5V-Voltage-Converter-Dual-Output-Switch-Mode-Power-Supply-/131106318362)
Thanks, Lam
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### Author:  [@joky](https://community.particle.io/u/joky)
#### Post date: [February 10, 2014, 2:04pm UTC](https://community.particle.io/t/power-adapter-for-spark-core/2750/2 "2014-02-10T14:04:59Z")
Hi,
if you want to drive some 230V devices you have to use either Relays (traditional electro-mechanic or electronic aka “Solid State Relays” or “PhotoMOS”). Whatever you use, you’ll need some power to drive them.
The power supply you proposed provides 100 mA on 5V Line + 400 mA on 12V. The 100 mA might be exceeded by driving one or 2 relays and the spark core. You can drive those over the 12V line, but I’d rather go for this:
[http://www.ebay.com/itm/AC-DC-In-AC85-265V-Out-DC-5V-600mA-Switch-Power-Supply-Isolation-Module-220-110V-/271145661070?pt=LH\_DefaultDomain\_0&hash=item3f218a728e](http://www.ebay.com/itm/AC-DC-In-AC85-265V-Out-DC-5V-600mA-Switch-Power-Supply-Isolation-Module-220-110V-/271145661070?pt=LH_DefaultDomain_0&hash=item3f218a728e)
This has only 5V but supplies 600 mA on this. It should be enough for a couple of relays.
regards
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### Author:  [@joky](https://community.particle.io/u/joky)
#### Post date: [February 10, 2014, 2:05pm UTC](https://community.particle.io/t/power-adapter-for-spark-core/2750/3 "2014-02-10T14:05:40Z")
btw: why don’t kill a old USB-power supply? You might have plenty of those at home anyway 😄
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### Author:  [@lamle](https://community.particle.io/u/lamle)
#### Post date: [February 10, 2014, 4:00pm UTC](https://community.particle.io/t/power-adapter-for-spark-core/2750/4 "2014-02-10T16:00:09Z")
Hi Joky,
Thank you for helping, and that is true, i ll go back home and break my nokia adapter 😃