I have one phillips T10 LED which shares some wiring back to the battery with other devices, one of them being this laptop which is powered by a DC to DC converter.
The laptop causes this bulb, and only this bulb to flicker.
The amp draw of this laptop really jumps around quickly when read by my GT power meter or my clamp on meter, and I figure it is doing so much faster than these tools can measure.
If I turn the laptop off but leave it plugged in to charge the laptop battery, the flickering stops. Only when laptop is running does it flicker.
I can live with it. I wonder how long the Phillips t10 bulb can.