# WS2814 24V flickering/gliching when connected to 3.3v - No change with Logic level shifter **URL:** \ **Category:** Issues\ **Created:** [January 21, 2024, 8:43pm UTC](https://wled.discourse.group/t/ws2814-24v-flickering-gliching-when-connected-to-3-3v-no-change-with-logic-level-shifter/10854 "2024-01-21T20:43:21Z")\ **Posts on this page:** 1\ **Showing post:** 10
**Author:** ![nici](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/nici/32/6984_2.png) [@nici](https://wled.discourse.group/u/nici)\ **Post date:** [January 22, 2024, 9:37am UTC](https://wled.discourse.group/t/ws2814-24v-flickering-gliching-when-connected-to-3-3v-no-change-with-logic-level-shifter/10854/10 "2024-01-22T09:37:40Z")
> [@Logdin](#): > > I don’t see a 5v positive input on the board from your power supply. Am I missing something? 5v positive comes through USB ^^ I take that and feed it to the LLS by bridging the `VIN` pin on the ESP32 with the red 5V wire > [@Logdin](#): > > I also don’t see a capacitor between ground and positive on the level shifter Technically you can leave it out says [this forum post](https://wled.discourse.group/t/does-this-capacitor-really-required/2964): > [@Does this capacitor really required?](https://wled.discourse.group/t/does-this-capacitor-really-required/2964/2): > > The capacitor is not required, but if your power-supply is a bit nosey or pulls too much current, it can help smooth out the noise, and cause less problems. (this is very useful if you have VERY long strings of LEDs) I have a few LED strings that are all 5v that I deliberately didn’t install the cap, and they work perfectly. Although my power supply’s noisy-ness isnt exactly confidence instilling. I’ll give that a shot, thanks! --- _[View the full topic](https://wled.discourse.group/t/ws2814-24v-flickering-gliching-when-connected-to-3-3v-no-change-with-logic-level-shifter/10854)._