Ceiling centre light with bayonet connection

[rapidnailer07]

I would like to get some centre ceiling lights for bedrooms in flat and circular style such as this:

Room lights.JPG (30.51 KiB) Viewed 1316 times

I've already got a number of expensive Philips Hue bulbs that have the bayonet connection, so I'd like to use these for this kind of light. However, I can't seem to see any that use the bayonet B22 connection. I understand the screw type connection (E27) seems to be more standardised now but just wondering if anyone knows of a shop or location that may still do a reasonably cheap light fitting in this kind of style that still have the B22 connection?

The alternative is, I could get adaptors that convert B22 to E27. However, are these a large fire or safety risk hazard?

I'm not keen on getting rid of the Hue bulbs, as I paid a lot for them at the time (although there's much better value alternatives these days). However, the Hue's work so I'd rather keep them until they die. As the bulbs die, I will swap the light fitting to similar ones with E27 connection and get a newer better value E27 smart bulb.

Thoughts?

[arco_iris]

Think about it chum, how is your bulb going to fit in one of those fittings?.

The luminaires pictured are likely to be LED as this is the modern, low profile & energy efficient availability. Possibly, some of them could be fluorescent, either ring type or D type, but they have a greater profile to accommodate the tube, and I doubt they're still available new.

A B22 bulb in this (old) type of ceiling fitting had the bulb mounted sideways with the holder off to one side so that the glowing filament was near the centre, and because of the bulb's diameter the whole fitting had to be deep enough to take it.... and a Hue type bulb would have the light emitting part off to one side, so light spread would be lopsided.

The only type of ceiling enclosure that would take a Hue bulb sensibly & in the correct orientation would be a globe type:

11mjQvRUeqL._AC_.jpg (2.08 KiB) Viewed 1304 times

[rapidnailer07]

Think about it chum, how is your bulb going to fit in one of those fittings?

The bulb would be mounted sideways. The previous place I lived had the same style flat lights with B22 connections mounted sideways. However, these were old lights that are very hard to source these days (from my searching). Yes, this would lead to a slightly lopsided light but the diffuser seemed good enough to give an even spread of light in the room (which I'm okay with).

[arco_iris]

I was referring to the items that you pictured as what you wanted. You would need a much deeper fitting, for instance this style:

8747867_1.jpg (9.69 KiB) Viewed 1294 times

in the event that you could find one in B22. It would have to be pretty old stock.

The ones you pictured would never work!

[rapidnailer07]

This is the light fitting I had in the previous place I had:

light2.JPG (89.64 KiB) Viewed 1273 times

As you can see, it is fairly flat. This is how the bulb is mounted:

light1.JPG (64.04 KiB) Viewed 1273 times

The fitting must have been quite old which is why it was available with a B22 connection. I'm guessing this will be like unicorn poo to find now. However, if I found an equivalent one like this with an E27 connector, then it seems like it has enough room to use one of those adaptors.

Anyone know how safe those adaptors are?