Why does 36W LED bulb not light up?
If the lamp fits the socket, there is no problem with it being &quot;underpowered&quot;. This appears to be a simple socket without ballast, just an on/off switch in series.
Two possible causes of the issue:

The center contact of the &quot;Edison base&quot; E27 screw socket might not be making contact, particularly if another lamp pushed the contact down. Unplug the socket from the mains! Then gently pry up the unattached end of the center contact. Hopefully, this will fix it; please let me know if it works.



The lamp sold to you may indeed be defective. Return it for a replacement.