Nearly always the globe. Most stepped touch lamps, the 3-stage kind, use a basic dimmer circuit designed around halogen and incandescent globes. Put a cheap or non-dimmable LED in one and it will flicker, buzz or skip a stage, especially on the low setting, because the LED's driver cannot follow the rough signal the dimmer sends it. The fix is a good quality dimmable LED from a brand you recognise, which has the driver to smooth that signal out. Our LED globes range is filtered by base so you can find the right E14, E27 or B22. If a quality dimmable LED still flickers, check the globe is seated firmly, try another power point, then contact us.