mindau Posted October 18 Share Posted October 18 Im planning to put multiple Shelly 1 Plus devices in my electrical box. I have possibility to power Shelly devices with 12v DC and 220v ac. Which method will be better? Quote Translate Revert translation? English (American) Finnish French German Italian Portuguese (European) Spanish Link to comment Share on other sites More sharing options...
Members thgoebel Posted October 19 Members Share Posted October 19 (edited) From a perspective of power consumption the most efficient solution is to power the devices with 12V DC because the primary stepdown converter is not used in this mode. In addition, operation experience teached us that WiFI is more stable with 12V DC due to less interference with switching frequencies of primary stepdown converter. Edited October 19 by thgoebel 2 Quote Translate Revert translation? English (American) Finnish French German Italian Portuguese (European) Spanish Link to comment Share on other sites More sharing options...
mindau Posted October 21 Author Share Posted October 21 And what about 24v? Is Shelly also capable to work with 24v DC? Quote Translate Revert translation? English (American) Finnish French German Italian Portuguese (European) Spanish Link to comment Share on other sites More sharing options...
Members thgoebel Posted October 21 Members Share Posted October 21 The Shelly plus 1 works with 24V DC too. Albeit, the two arguments given above don’t fit in this case: Power consumption is nearly the same or in some cases slightly higher as with mains supply. And WLAN stability may be worse. Reason for both effects is the operation of the primary stepdown converter in a not specified operating point. 1 Quote Translate Revert translation? English (American) Finnish French German Italian Portuguese (European) Spanish Link to comment Share on other sites More sharing options...
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