Is it actually worth switching all our old bulbs to LED, or is that overhyped?

Short answer: yes, an LED retrofit is one of the clearest, fastest-paying upgrades there is — LEDs use roughly 80-90% less energy than old incandescent bulbs and far less than halogen spots for the same brightness, and they last many times longer, so you save on both the electricity AND the constant replacements. Where you have lots of halogen downlights (big villas often have dozens burning 50W each), swapping to LED is a genuine, visible bill saving with a short payback. The catch is doing it RIGHT: match brightness (lumens, not watts), pick the colour temperature you actually want, use good-quality lamps, and if you dim, use LED-compatible dimmers/lamps.

Why it's worth it: - The saving is large per bulb: an LED replacing a 50W halogen might use ~5-7W for similar light — that's the ~80-90% cut. Multiply by a villa's worth of downlights burning for hours and it's real money off the bill. - They last far longer: many times the life of halogen/incandescent, so you also stop constantly replacing blown bulbs (and climbing ladders). - Payback: because the per-bulb saving and the lamp count are both high, a halogen-heavy home usually pays back the retrofit quickly — the more you run them, the faster.

Do it right (this is where people go wrong): - Match by LUMENS, not watts — buy the brightness you want; "60W-equivalent" tells you the light output. - Pick the colour temperature deliberately — warm (~2700-3000K) for living spaces, cooler for task areas — so it doesn't feel like an office. - Quality matters — cheap LEDs flicker, buzz, shift colour or die early; decent ones don't. - Dimming: use LED-compatible (dimmable) lamps on LED-rated dimmers, or you get flicker/buzz.

All-at-once vs as-they-blow: - The heavily-used lights (and any halogen) are worth doing now — that's where the saving is. - Rarely-used bulbs can wait until they fail; no rush.

Common mistake: buying the cheapest LEDs and hating the light (harsh colour, flicker) or under-/over-lighting the room. Choose lumens + colour + quality, and for a big retrofit or anything hard-wired, an energy-efficient lighting upgrade by an electrician gets it done cleanly. Anyone retrofitted a villa's downlights — what did it do to the bill?