on mine the silver bit is just pushed in and held by a spring, so you just grip and prise it down. Definitely LEDs, bought a bunch off ebay for mine and not had a blow since (missus).
We have loads of those with small bulbs and wire clips, in the end I replaced all of them with a fitting that doesn’t use the wire to hold the bulb in pace but unscrews – some of the best money I’ve ever spent!