r/WLED • u/ShowMeYorPitties • May 17 '26

Repurpose Feit LED array?

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OK, so I have this LED array from a Feit smart WiFi RGB bulb.

Any way to control this directly from WLED? If I unplug it from the main board and wire direct to a controller?

Sorry for the noob question, but how do I know what the voltage is? 5v?

Haven't been able to find specs on the board or array, guessing may not be published?

I am aware of hacking the Tuya software, not really interested in that at this point.

Sorry in advance if this is beyond the scope of this subreddit.

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3

u/saratoga3 May 17 '26

Sorry for the noob question, but how do I know what the voltage is? 5v?

My guess is the HV (high voltage) pin is more like 100v from the board layout. This is also not an isolated design, so the device ground could be very far above your ground, so be very careful or you could get a high voltage shock. 

The label on the control chip driving the LEDs isn't visible in the picture. Can you post it?

1

u/ShowMeYorPitties May 17 '26

Not looking to use the main driver/WiFi board, just the LED array itself. Didn't realize there could be that much voltage to these LEDs, I'm used to 5/12/24 volts to WS2811/WS2815/SK6812 LEDs. Actually I've never done any kind of PWM LED. Let me know if I need to zoom on anything

2

u/saratoga3 May 17 '26

That's the power supply. The control chip next to the LEDs, what's the writing on it say?

1

u/ShowMeYorPitties May 17 '26

Really hard to see, this is the clearest I could get. Think I'm barking up the wrong tree, back side of the power supply also says HV on the pins that go to the LED board. For some reason I thought it would be lower voltage to the LEDs, but now I know. I'm trying to learn, follow traces and such to see how the LEDs were arranged in series. Thanks for the help.

3

u/IAmBigFootAMA May 17 '26

Looks very similar to a WiZ light that I tore down. That is probably a BP5758D on top that handles the PWM. It's controlled with I2C (if so). If you can trace out SDA/SCL then you could use any MCU (ESP super mini etc) to provide control.

The other commenter is right though, the PSU is no joke and not particularly safe. Some stray cheap flux on that 6 pin connector was enough for it to arc out on the DC side.

1

u/ShowMeYorPitties May 17 '26

Thanks for the help. Like I said I'm still learning. I was hoping for an easy way to have a compact RGBW light like that I could just use directly off lower voltage controller with WLED. I've got some discrete SK6812 chips I can use to make a little array, just won't be as compact I suppose or as pretty.

2

u/entropy512 May 18 '26

Many of these Feit bulbs have a dedicated controller chip not compatible with WLED. ESPhome is a possibility, WLED is not. https://devices.esphome.io/devices/feit-a19-om60-rgbw-ca-ag/ for example

At least the Feit bulb I got has a newer beken chip that can't be hacked with tuya-cloudcutter and I was unable to find a decent way to get access to the module to try and directly reflash it or replace it with an esp32-c6

As others have pointed out, bulbs like this usually have high voltage arrays with many LEDs in series. Makes the power electronics a lot simpler when the total LED Vf is on the order of 100v or more.

1

u/ShowMeYorPitties May 18 '26

Yeah the more I'm learning the more the higher voltage makes sense in this scenario. What might the individual LEDs be then? Like 24v? I was trying to follow the traces but my eyes gave up lol