I am having a problem with my under cupboard lighting.
All the bulbs currently work if you tweak them, but then shortly after stop working
I do not wish to replace these units, but preferable find a way a solution whereby the bulbs can stay on permanently.

There is obviously some kind of disconnection going on here, and I am wondering if there is some kind of work around, something I can do, to fix this intermittent problem.

Outside of scouring the elements/legs of the bulb with Scotchbrite which does help, is there something else I can do.
Has anyone seen these light fittings being sold today?

Take 'em out. Go to Thai Watsadu or similar and get direct wired LED simple, very bright and I believe about 10% of others. Everytime a flouro goes I get a magnetic LED replacement as well.????????????????

Four months later.
Outside of the one reply here, I have had another go at trying to resolve these faulty light fittings

To me there is the soft option of trying to repair what's faulty, as opposed to installing another completely new concept and system.
I feel the problem lies in the fitting into which these bulbs go into, in the image below in looks brown:

 

 

Has anybody seen these types of fittings, are they still available and if so where please?
 

On 3/7/2020 at 4:39 PM, up2you2 said:

There is obviously some kind of disconnection going on here, and I am wondering if there is some kind of work around, something I can do, to fix this intermittent problem.

Corrosion forming on the contacts.

Replace with LEDs.

On 3/7/2020 at 4:39 PM, up2you2 said:

All the bulbs currently work if you tweak them, but then shortly after stop working
I do not wish to replace these units, but preferable find a way a solution whereby the bulbs can stay on permanently.

There is obviously some kind of disconnection going on here, and I am wondering if there is some kind of work around, something I can do, to fix this intermittent problem.

Outside of scouring the elements/legs of the bulb with Scotchbrite which does help, is there something else I can do.

 

If you're still experiencing corrosion issues you could try coating the bulb prongs in dielectric grease, aka silicone dielectric compound, that's commonly used with automotive electrics to prevent similar corrosion on Battery terminals, Ignition coil connectors, Headlamp connectors and Trailer electrical connectors. Be sure to read the product use guide cheaper versions may only be rated for low voltage applications (specified as voltage breakdown point).