Downlighter rechargeable bulbs flickering

[Justplaindayne]

A question for the electrical bofs. I bought two downlighter rechargeable bulbs for my kitchen recently. Oddly when they are in their fitting they flicker when the power is out (this is when they obviously should be just running on their battery power). When however I let the bulbs hang (unclip them form the casing) they don't flicker and work properly. If I try then to put them back they flicker again. Why would it do this?

 

[Justplaindayne]

Bump

 

[shakes1]

Not an expert, but I would guess that the casing is providing some sort of short.

Is it a metal casing?
Perhaps when the grid is down, there is no earth and this is creating some fonkiness?

Will happily defer to the experts.

 

[geezer]

I recently had a chat with a colleague. He also had some sort of problem with a rechargeable bulb, and inexplicably he solved his problem by removing the bulb, rotating the bulb 180 degrees and then reinserted it, and his problem went away. Obviously this will not work with any screw in connection.

 

[chrisc]

Just take them back. A neighbour bought a pack of 10 from Makro. One did not work at all and three also flicker

 

[AlphaJohn]

Just take them back. A neighbour bought a pack of 10 from Makro. One did not work at all and three also flicker

Somehow I don't think that is an option anymore?

 

[soulie]

it does it because the cheap crappy chinese made GU10 sockets dielectric resistance is too low ie less than 1 meg ohm so it sees a bit of resistance and turns on .only ceramic sockets should be used and even some of them are bad it allso depends on how crappy the downlight resistance circuit is

 

[soulie]

high humidity and being used outdoors can also cause that .