# Switching on zigbee lamps (serie of 10) slow all of a sudden

**URL:** <https://community.homey.app/t/switching-on-zigbee-lamps-serie-of-10-slow-all-of-a-sudden/47469>\
**Category:** Questions & Help\
**Tags:** zigbee\
**Created:** [May 16, 2021, 7:43pm UTC](https://community.homey.app/t/switching-on-zigbee-lamps-serie-of-10-slow-all-of-a-sudden/47469 "2021-05-16T19:43:07Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\
**Post date:** [May 16, 2021, 9:43pm UTC](https://community.homey.app/t/switching-on-zigbee-lamps-serie-of-10-slow-all-of-a-sudden/47469/3 "2021-05-16T21:43:07Z")

</div>

> [@Does homey get bothered with a lot of flows?](https://community.homey.app/t/does-homey-get-bothered-with-a-lot-of-flows/36251/2):
>
> Only known issue is sending many updates to devices short after each other fe switching 10 lights at once (on zigbee, or zwave or 433Mhz). As workaround set a delay of 1 second between many devices.

A way to avoid delays of _whole seconds_ is to create 3 flows which control 1/3 of the lights each.  
Flow 1 switches on say 3 lights and starts flow 2  
Flow 2 switches on another set of 3 lights and starts flow 3  
Flow3 switch on the last set of 3 or 4 lights .  
Flows are started x msecs after eachother, which is a lot quicker then adding a delay of 1 sec between every set of 3 lights.

Another option is to use the \< group \> app. It can group anything with similar possibilities, like dim & hue etc etc.  
It has a build in option, to switch every item in the group with a little delay in between. It’s adjustable per msec.  
So the action card becomes one card:  
dim a group of your preferred lights to the value of variable [Keuken dim]

---

_[View the full topic](https://community.homey.app/t/switching-on-zigbee-lamps-serie-of-10-slow-all-of-a-sudden/47469)._