Thank you both. I'm not particularly attached to E27, I had just understood they could fit, but from your advice I now see it's not the best option.
Apologies for one more question, but I'm a complete novice so I'd better cross my t's and dot my i's: did I get you right, ericmark, that I could...
Thank you Ericmark, Taylortwocities and Sircerebus666, this is really helpful. It's good news the easiest and safest thing to do is just to change the pendant.
Taylortwocities, are you saying replacing my fitting with an E27 pendant is not safe then? I've never heard of BA22D, does it take...
Hi Sircere, it's a pendant (hanging light). Hard to take a picture of the inside of the fitting, but it has a small protruding bit that differentiates it from a GU10 bulb and prevents from fitting anything other than L1 bulbs. https://www.mygreenlighting.co.uk/info/lamp_caps.html
Good afternoon, UK-based DIY-ers
A query from a DIY-novice here:
In their great wisdom, the builders of my flat decided to install L1 light fittings to all 6 of my ceiling lamps. L1 bulbs don't serve my purposes, so I want to convert these L1 light fittings into something that can take E27...