'Got 5 recessed lights in our hallway.4 have now blown.I've had a look & can't see how the bulbs come out. There's a wire/spring(?) that seems to hold the bulb in.Should this push back from both sides?'Doesn't seem to want to do it for me or am I approaching it the right way? Please,no "changing lightbulb" jokes!! Thanks!
Most likely the whole unit is held by a spring loading mechanism and so need to be pulled out completely. See and, in particular, [broken link removed] for example.
If bulbs are blowing on a regular basis then there may be some fault or issue with the installation - e.g. overheating of the bulbs and/or transformers etc.
I mastered replacing these in-situ- cos I was making sh**e of my ceiling every time I removed the whole fitting.
Under the lamp, there's a metal ring (it's split in the middle) that hold's up the lamp itself. If you can pry this (carefully!), the bulb will present itself for unscrewing, without removing the whoile fitting. Probably best the electricity is off for this....