# Flash a light bulb
**URL:** https://community.homey.app/t/flash-a-light-bulb/74990
**Category:** Flows
**Created:** [January 12, 2023, 5:09pm UTC](https://community.homey.app/t/flash-a-light-bulb/74990 "2023-01-12T17:09:40Z")
**Posts on this page:** 15
**Page:** 1
### Author:  [@Matthieu\_Moreau](https://community.homey.app/u/Matthieu_Moreau)
#### Post date: [January 12, 2023, 5:09pm UTC](https://community.homey.app/t/flash-a-light-bulb/74990/1 "2023-01-12T17:09:40Z")
hello everyone, I’m looking to make a bulb blink in a flow. know how? thank you
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### Author:  [@Jonathan\_Draper](https://community.homey.app/u/Jonathan_Draper)
#### Post date: [January 12, 2023, 7:42pm UTC](https://community.homey.app/t/flash-a-light-bulb/74990/2 "2023-01-12T19:42:31Z")
Can you be a bit more specific? Just a single flash on off? Or repeatedly? Overall what are you trying to achieve?
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### Author:  [@Matthieu\_Moreau](https://community.homey.app/u/Matthieu_Moreau)
#### Post date: [January 12, 2023, 8:49pm UTC](https://community.homey.app/t/flash-a-light-bulb/74990/3 "2023-01-12T20:49:27Z")
@Jonathan_Draper
I would like it to turn on and off for 5 min at an interval of about 2 seconds on well
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### Author:  [@Jonathan\_Draper](https://community.homey.app/u/Jonathan_Draper)
#### Post date: [January 14, 2023, 10:37am UTC](https://community.homey.app/t/flash-a-light-bulb/74990/4 "2023-01-14T10:37:07Z")
I managed it with advanced flows and using the Chronograph app but it was surprisingly complex. There might be a simpler way to achieve this but not sure what it would be. You could also cancel the blinking from a flow simply by stopping the timer. This flow ensures that the lamp always ends up in the off state.
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### Author:  [@Jonathan\_Draper](https://community.homey.app/u/Jonathan_Draper)
#### Post date: [January 14, 2023, 10:38am UTC](https://community.homey.app/t/flash-a-light-bulb/74990/5 "2023-01-14T10:38:45Z")
It would be a lot easier with HomeyScript but then you need to learn how to use HomeyScript and I’ve got by without so far!
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### Author:  [@Matthieu\_Moreau](https://community.homey.app/u/Matthieu_Moreau)
#### Post date: [January 14, 2023, 11:08am UTC](https://community.homey.app/t/flash-a-light-bulb/74990/6 "2023-01-14T11:08:44Z")
Wahou…I will test this
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### Author:  [@Matthieu\_Moreau](https://community.homey.app/u/Matthieu_Moreau)
#### Post date: [January 15, 2023, 1:18pm UTC](https://community.homey.app/t/flash-a-light-bulb/74990/7 "2023-01-15T13:18:05Z")
Hello
I have a problem, it does not offer me any flow with this card 🙂
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### Author:  [@Jonathan\_Draper](https://community.homey.app/u/Jonathan_Draper)
#### Post date: [January 15, 2023, 3:17pm UTC](https://community.homey.app/t/flash-a-light-bulb/74990/8 "2023-01-15T15:17:46Z")
That refers back to this same flow. You need to save (and name) this flow first (without that card) then you will be able to add this card referring to this flow by the name you just gave it
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### Author:  [@Jonathan\_Draper](https://community.homey.app/u/Jonathan_Draper)
#### Post date: [January 15, 2023, 3:20pm UTC](https://community.homey.app/t/flash-a-light-bulb/74990/9 "2023-01-15T15:20:38Z")
So to be clear in my example above the flow was saved as “Blink light” and that’s what that card refers to
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### Author:  [@Matthieu\_Moreau](https://community.homey.app/u/Matthieu_Moreau)
#### Post date: [January 16, 2023, 10:32am UTC](https://community.homey.app/t/flash-a-light-bulb/74990/11 "2023-01-16T10:32:11Z")
@Jonathan_Draper it’s good, thenks you
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### Author:  [@Nathan\_OBryan](https://community.homey.app/u/Nathan_OBryan)
#### Post date: [May 17, 2024, 10:01pm UTC](https://community.homey.app/t/flash-a-light-bulb/74990/12 "2024-05-17T22:01:03Z")
Bit simpler, works for me.
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### Author:  [@Nathan\_OBryan](https://community.homey.app/u/Nathan_OBryan)
#### Post date: [May 17, 2024, 10:11pm UTC](https://community.homey.app/t/flash-a-light-bulb/74990/13 "2024-05-17T22:11:17Z")
The actual flow where I was using this. Flashes front door light for 15 minutes if the door lock detects forced entry.
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### Author:  [@Robert\_Szilagyi](https://community.homey.app/u/Robert_Szilagyi)
#### Post date: [August 13, 2025, 6:14am UTC](https://community.homey.app/t/flash-a-light-bulb/74990/14 "2025-08-13T06:14:42Z")
This is my problem too. I just cant choose any flow, but i have a ton lol. What was the solution for this?
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### Author:  [@Robert\_Szilagyi](https://community.homey.app/u/Robert_Szilagyi)
#### Post date: [August 13, 2025, 6:15am UTC](https://community.homey.app/t/flash-a-light-bulb/74990/15 "2025-08-13T06:15:47Z")
Dont know what do you mean with this. For me the flow got a name and also saved but i cant choose any flow. There is none when i want to use this flow yes/no card.
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### Author:  [@Jonathan\_Draper](https://community.homey.app/u/Jonathan_Draper)
#### Post date: [August 13, 2025, 7:05am UTC](https://community.homey.app/t/flash-a-light-bulb/74990/16 "2025-08-13T07:05:01Z")
Have you already added the “This flow is started with a yes/no tag” WHEN card to the flow before you saved it? That’s what should make it appear in the list of flows to choose from when you add the “Start flow with yes” THEN card.
If you already tried that, maybe refresh the web page in your browser while the advanced flow is loaded. I’ve found some changes don’t seem to get fully reflected until you do that.