If you mean selfballasted retrofit LED jokes (these I do not call lamps), they have no chance to perform in any reasonable way, the heat problem is simply not manageable in such small format.
In fact these jokes make the reputation the LED's have: Short living, low output, low efficacy, very expensive, dangerous...

LED's have their use, where you need cold running SELV (those LED stripes; e.g. close to water), instant ON full brightness and short burning time per start. But it should be purpose made fixtures, not those retrofits.

Same with fluorescents: With "retrofit" jokes you make only troubles as well (poor optical match, short life, low efficacy,...).

Yes, there the one we`re on about , there are some proper good LED lamps out there, but at the minute their just too expensive here for the home user.

Most commercially available LED lamps run far too hot for reliable use indoors.  I only use such lamps as laying stimulation lighting in our chicken houses (or one of them at least; the chickens in the other one are too young to lay) during the winter, as the low operating temperature in them (they are unheated) is ideal for LEDs.  LEDs as general lighting is just another stupid green fad being pushed by a bunch of idiots with no understanding of how anything works.  Their understanding of lighting is that the light turns on the switch is flipped and that efficiency is good.  In the same fashion, their understanding of electricity is that it comes out of this thing with holes in it mounted in the wall.  If they are really smart (for a greenie), they know that that cabinet full of funny looking switches in a back room or the basement is somehow involved.  LEDs are great for indicators and low level illumination, but for anything else better things exist.

Most commercially available LED lamps run far too hot for reliable use indoors.  I only use such lamps as laying stimulation lighting in our chicken houses (or one of them at least; the chickens in the other one are too young to lay) during the winter, as the low operating temperature in them (they are unheated) is ideal for LEDs.  LEDs as general lighting is just another stupid green fad being pushed by a bunch of idiots with no understanding of how anything works.  Their understanding of lighting is that the light turns on the switch is flipped and that efficiency is good.  In the same fashion, their understanding of electricity is that it comes out of this thing with holes in it mounted in the wall.  If they are really smart (for a greenie), they know that that cabinet full of funny looking switches in a back room or the basement is somehow involved.  LEDs are great for indicators and low level illumination, but for anything else better things exist.

Not all the greenies are like that, but the ones that understand better dont troll so are not heard....